56166415145 has 4 divisors (see below), whose sum is σ = 67399698180. Its totient is φ = 44933132112.

The previous prime is 56166415117. The next prime is 56166415153. The reversal of 56166415145 is 54151466165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19479226624 + 36687188521 = 139568^2 + 191539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56166415145 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56166415096 and 56166415105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5616641510 + ... + 5616641519.

It is an arithmetic number, because the mean of its divisors is an integer number (16849924545).

Almost surely, 2^56166415145 is an apocalyptic number.

It is an amenable number.

56166415145 is a deficient number, since it is larger than the sum of its proper divisors (11233283035).

56166415145 is a wasteful number, since it uses less digits than its factorization.

56166415145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233283034.

The product of its digits is 432000, while the sum is 44.

The spelling of 56166415145 in words is "fifty-six billion, one hundred sixty-six million, four hundred fifteen thousand, one hundred forty-five".