2656530065 has 16 divisors (see below), whose sum is σ = 3768871680. Its totient is φ = 1758805440.

The previous prime is 2656530031. The next prime is 2656530073. The reversal of 2656530065 is 5600356562.

It is not a de Polignac number, because 2656530065 - 2²⁶ = 2589421201 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, 1307621 + ... + 1309650.

It is an arithmetic number, because the mean of its divisors is an integer number (235554480).

Almost surely, 2^2656530065 is an apocalyptic number.

It is an amenable number.

2656530065 is a deficient number, since it is larger than the sum of its proper divisors (1112341615).

2656530065 is a wasteful number, since it uses less digits than its factorization.

2656530065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617312.

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 2656530065 is about 51541.5372781992. The cubic root of 2656530065 is about 1384.9632358707.

The spelling of 2656530065 in words is "two billion, six hundred fifty-six million, five hundred thirty thousand, sixty-five".