2656180231 has 16 divisors (see below), whose sum is σ = 2835108864. Its totient is φ = 2482711264.

The previous prime is 2656180217. The next prime is 2656180253. The reversal of 2656180231 is 1320816562.

It is not a de Polignac number, because 2656180231 - 2⁵ = 2656180199 is a prime.

It is a super-2 number, since 2×2656180231² = 14110586839110426722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656186231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860016 + ... + 863098.

It is an arithmetic number, because the mean of its divisors is an integer number (177194304).

Almost surely, 2^2656180231 is an apocalyptic number.

2656180231 is a deficient number, since it is larger than the sum of its proper divisors (178928633).

2656180231 is a wasteful number, since it uses less digits than its factorization.

2656180231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2656180231 is about 51538.1434570552. The cubic root of 2656180231 is about 1384.9024387047.

Adding to 2656180231 its reverse (1320816562), we get a palindrome (3976996793).

The spelling of 2656180231 in words is "two billion, six hundred fifty-six million, one hundred eighty thousand, two hundred thirty-one".