56616061055085 has 96 divisors (see below), whose sum is σ = 113882837552640. Its totient is φ = 25483559270400.

The previous prime is 56616061055077. The next prime is 56616061055107. The reversal of 56616061055085 is 58055016061665.

It is a happy number.

56616061055085 is a `hidden beast` number, since 5 + 6 + 6 + 1 + 6 + 0 + 6 + 1 + 0 + 550 + 85 = 666.

It is not a de Polignac number, because 56616061055085 - 2³ = 56616061055077 is a prime.

It is a super-2 number, since 2×56616061055085² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15356521 + ... + 18683009.

It is an arithmetic number, because the mean of its divisors is an integer number (1186279557840).

Almost surely, 2^{56616061055085} is an apocalyptic number.

It is an amenable number.

56616061055085 is an abundant number, since it is smaller than the sum of its proper divisors (57266776497555).

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

56616061055085 is a wasteful number, since it uses less digits than its factorization.

56616061055085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327339 (or 3327336 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 54.

The spelling of 56616061055085 in words is "fifty-six trillion, six hundred sixteen billion, sixty-one million, fifty-five thousand, eighty-five".