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61055055111 = 333296113453
BaseRepresentation
bin111000110111001010…
…100011010100000111
312211121000212011021110
4320313022203110013
52000020043230421
644014233420103
74261000256061
oct706712432407
9184530764243
1061055055111
1123990a94636
12b9bb26a633
1359b020265b
142d52a52731
1518c51aba76
hexe372a3507

61055055111 has 8 divisors (see below), whose sum is σ = 81431207280. Its totient is φ = 40691136512.

The previous prime is 61055055097. The next prime is 61055055163. The reversal of 61055055111 is 11155055016.

61055055111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61055055111 - 222 = 61050860807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61055055181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3046740 + ... + 3066713.

It is an arithmetic number, because the mean of its divisors is an integer number (10178900910).

Almost surely, 261055055111 is an apocalyptic number.

61055055111 is a deficient number, since it is larger than the sum of its proper divisors (20376152169).

61055055111 is a wasteful number, since it uses less digits than its factorization.

61055055111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116785.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 61055055111 in words is "sixty-one billion, fifty-five million, fifty-five thousand, one hundred eleven".

Divisors: 1 3 3329 9987 6113453 18340359 20351685037 61055055111