2564630156 has 24 divisors (see below), whose sum is σ = 4897746000. Its totient is φ = 1165352000.

The previous prime is 2564630143. The next prime is 2564630161. The reversal of 2564630156 is 6510364652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154970 + ... + 170718.

It is an arithmetic number, because the mean of its divisors is an integer number (204072750).

Almost surely, 2^2564630156 is an apocalyptic number.

It is an amenable number.

2564630156 is a deficient number, since it is larger than the sum of its proper divisors (2333115844).

2564630156 is a wasteful number, since it uses less digits than its factorization.

2564630156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19465 (or 19463 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 2564630156 is about 50642.1776388022. The cubic root of 2564630156 is about 1368.8049955565.

The spelling of 2564630156 in words is "two billion, five hundred sixty-four million, six hundred thirty thousand, one hundred fifty-six".