61565160054 has 32 divisors (see below), whose sum is σ = 123986453760. Its totient is φ = 20379524000.

The previous prime is 61565160049. The next prime is 61565160079. The reversal of 61565160054 is 45006156516.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61565159994 and 61565160021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440629 + ... + 563279.

It is an arithmetic number, because the mean of its divisors is an integer number (3874576680).

Almost surely, 2^61565160054 is an apocalyptic number.

61565160054 is an abundant number, since it is smaller than the sum of its proper divisors (62421293706).

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

61565160054 is a wasteful number, since it uses less digits than its factorization.

61565160054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123236.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 61565160054 in words is "sixty-one billion, five hundred sixty-five million, one hundred sixty thousand, fifty-four".