61335062272 has 36 divisors (see below), whose sum is σ = 133560589176. Its totient is φ = 27879572480.

The previous prime is 61335062233. The next prime is 61335062273. The reversal of 61335062272 is 27226053316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61335062273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10887643 + ... + 10893274.

It is an arithmetic number, because the mean of its divisors is an integer number (3710016366).

Almost surely, 2^61335062272 is an apocalyptic number.

It is an amenable number.

61335062272 is an abundant number, since it is smaller than the sum of its proper divisors (72225526904).

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

61335062272 is a wasteful number, since it uses less digits than its factorization.

61335062272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780944 (or 21780930 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 61335062272 in words is "sixty-one billion, three hundred thirty-five million, sixty-two thousand, two hundred seventy-two".