2531166656 has 28 divisors (see below), whose sum is σ = 5072527320. Its totient is φ = 1253049600.

The previous prime is 2531166607. The next prime is 2531166691. The reversal of 2531166656 is 6566611352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189326 + ... + 202253.

It is an arithmetic number, because the mean of its divisors is an integer number (181161690).

Almost surely, 2^2531166656 is an apocalyptic number.

It is an amenable number.

2531166656 is an abundant number, since it is smaller than the sum of its proper divisors (2541360664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531166656 is a wasteful number, since it uses less digits than its factorization.

2531166656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391692 (or 391682 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 2531166656 is about 50310.7012075960. The cubic root of 2531166656 is about 1362.8254868206.

The spelling of 2531166656 in words is "two billion, five hundred thirty-one million, one hundred sixty-six thousand, six hundred fifty-six".