2656265155 has 16 divisors (see below), whose sum is σ = 3297617568. Its totient is φ = 2052640000.

The previous prime is 2656265153. The next prime is 2656265197. The reversal of 2656265155 is 5515626562.

It is not a de Polignac number, because 2656265155 - 2¹ = 2656265153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656265153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43441 + ... + 84850.

It is an arithmetic number, because the mean of its divisors is an integer number (206101098).

Almost surely, 2^2656265155 is an apocalyptic number.

2656265155 is a deficient number, since it is larger than the sum of its proper divisors (641352413).

2656265155 is a wasteful number, since it uses less digits than its factorization.

2656265155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128438.

The product of its digits is 540000, while the sum is 43.

The square root of 2656265155 is about 51538.9673451069. The cubic root of 2656265155 is about 1384.9171980196.

The spelling of 2656265155 in words is "two billion, six hundred fifty-six million, two hundred sixty-five thousand, one hundred fifty-five".