56604655640665 has 16 divisors (see below), whose sum is σ = 74101749716736. Its totient is φ = 41166405836800.

The previous prime is 56604655640537. The next prime is 56604655640699.

56604655640665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56604655640665 - 2⁷ = 56604655640537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56604655640597 and 56604655640606.

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, 3983041 + ... + 11361070.

It is an arithmetic number, because the mean of its divisors is an integer number (4631359357296).

Almost surely, 2^{56604655640665} is an apocalyptic number.

56604655640665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56604655640665 is a deficient number, since it is larger than the sum of its proper divisors (17497094076071).

56604655640665 is a wasteful number, since it uses less digits than its factorization.

56604655640665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15411200.

The product of its (nonzero) digits is 466560000, while the sum is 64.

The spelling of 56604655640665 in words is "fifty-six trillion, six hundred four billion, six hundred fifty-five million, six hundred forty thousand, six hundred sixty-five".