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61563343116288 = 2113131933993653
BaseRepresentation
bin11011111111101110101010…
…01100101001100000000000
322001222101202020021100211210
431333313111030221200000
531032123211314210123
6334533450455010120
715652543014241416
oct1577672514514000
9261871666240753
1061563343116288
111868595a266282
126aa347b069940
13284752421c3a0
14112b9788572b6
1571b60ce1ce93
hex37fdd5329800

61563343116288 has 192 divisors, whose sum is σ = 177669998644320. Its totient is φ = 18844414377984.

The previous prime is 61563343116287. The next prime is 61563343116349. The reversal of 61563343116288 is 88261134336516.

61563343116288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61563343116283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13418470 + ... + 17412122.

Almost surely, 261563343116288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61563343116288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88834999322160).

61563343116288 is an abundant number, since it is smaller than the sum of its proper divisors (116106655528032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61563343116288 is a wasteful number, since it uses less digits than its factorization.

61563343116288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993884 (or 3993864 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 61563343116288 in words is "sixty-one trillion, five hundred sixty-three billion, three hundred forty-three million, one hundred sixteen thousand, two hundred eighty-eight".