56501666105 has 16 divisors (see below), whose sum is σ = 69604860864. Its totient is φ = 44006276160.

The previous prime is 56501666099. The next prime is 56501666107. The reversal of 56501666105 is 50166610565.

It is not a de Polignac number, because 56501666105 - 2⁸ = 56501665849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56501666107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362006 + ... + 494015.

It is an arithmetic number, because the mean of its divisors is an integer number (4350303804).

Almost surely, 2^56501666105 is an apocalyptic number.

It is an amenable number.

56501666105 is a deficient number, since it is larger than the sum of its proper divisors (13103194759).

56501666105 is a wasteful number, since it uses less digits than its factorization.

56501666105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856376.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 56501666105 in words is "fifty-six billion, five hundred one million, six hundred sixty-six thousand, one hundred five".