56516055161 has 16 divisors (see below), whose sum is σ = 63407237760. Its totient is φ = 50058259200.

The previous prime is 56516055157. The next prime is 56516055179. The reversal of 56516055161 is 16155061565.

It is a cyclic number.

It is not a de Polignac number, because 56516055161 - 2² = 56516055157 is a prime.

It is a super-2 number, since 2×56516055161² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56516055121) 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 15 ways as a sum of consecutive naturals, for example, 530606 + ... + 628151.

It is an arithmetic number, because the mean of its divisors is an integer number (3962952360).

Almost surely, 2^56516055161 is an apocalyptic number.

It is an amenable number.

56516055161 is a deficient number, since it is larger than the sum of its proper divisors (6891182599).

56516055161 is a wasteful number, since it uses less digits than its factorization.

56516055161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158944.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 56516055161 in words is "fifty-six billion, five hundred sixteen million, fifty-five thousand, one hundred sixty-one".