2656046461665 has 64 divisors (see below), whose sum is σ = 4545457459200. Its totient is φ = 1320455499264.

The previous prime is 2656046461639. The next prime is 2656046461693. The reversal of 2656046461665 is 5661646406562.

It is not a de Polignac number, because 2656046461665 - 2⁵ = 2656046461633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8564952 + ... + 8869638.

It is an arithmetic number, because the mean of its divisors is an integer number (71022772800).

Almost surely, 2^{2656046461665} is an apocalyptic number.

It is an amenable number.

2656046461665 is a deficient number, since it is larger than the sum of its proper divisors (1889410997535).

2656046461665 is a wasteful number, since it uses less digits than its factorization.

2656046461665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305206.

The product of its (nonzero) digits is 37324800, while the sum is 57.

The spelling of 2656046461665 in words is "two trillion, six hundred fifty-six billion, forty-six million, four hundred sixty-one thousand, six hundred sixty-five".