2656165593 has 16 divisors (see below), whose sum is σ = 3715286400. Its totient is φ = 1685631360.

The previous prime is 2656165541. The next prime is 2656165601. The reversal of 2656165593 is 3955616562.

It is a de Polignac number, because none of the positive numbers 2^k-2656165593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2656165793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208828 + ... + 221181.

It is an arithmetic number, because the mean of its divisors is an integer number (232205400).

Almost surely, 2^2656165593 is an apocalyptic number.

It is an amenable number.

2656165593 is a deficient number, since it is larger than the sum of its proper divisors (1059120807).

2656165593 is a wasteful number, since it uses less digits than its factorization.

2656165593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430112.

The product of its digits is 1458000, while the sum is 48.

The square root of 2656165593 is about 51538.0014455353. The cubic root of 2656165593 is about 1384.8998946706.

It can be divided in two parts, 265616559 and 3, that added together give a palindrome (265616562).

The spelling of 2656165593 in words is "two billion, six hundred fifty-six million, one hundred sixty-five thousand, five hundred ninety-three".