56066045665 has 16 divisors (see below), whose sum is σ = 77973546240. Its totient is φ = 37903803840.

The previous prime is 56066045621. The next prime is 56066045681. The reversal of 56066045665 is 56654066065.

It is not a de Polignac number, because 56066045665 - 2⁷ = 56066045537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11278410 + ... + 11283379.

It is an arithmetic number, because the mean of its divisors is an integer number (4873346640).

Almost surely, 2^56066045665 is an apocalyptic number.

It is an amenable number.

56066045665 is a deficient number, since it is larger than the sum of its proper divisors (21907500575).

56066045665 is a wasteful number, since it uses less digits than its factorization.

56066045665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561872.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 56066045665 in words is "fifty-six billion, sixty-six million, forty-five thousand, six hundred sixty-five".