56610161145 has 128 divisors (see below), whose sum is σ = 103659678720. Its totient is φ = 29305497600.

The previous prime is 56610161141. The next prime is 56610161147. The reversal of 56610161145 is 54116101665.

It is not a de Polignac number, because 56610161145 - 2² = 56610161141 is a prime.

It is a super-2 number, since 2×56610161145² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56610161141) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 242961949 + ... + 242962181.

It is an arithmetic number, because the mean of its divisors is an integer number (809841240).

Almost surely, 2^56610161145 is an apocalyptic number.

It is an amenable number.

56610161145 is a deficient number, since it is larger than the sum of its proper divisors (47049517575).

56610161145 is a wasteful number, since it uses less digits than its factorization.

56610161145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 56610161145 in words is "fifty-six billion, six hundred ten million, one hundred sixty-one thousand, one hundred forty-five".