2565631320332 has 24 divisors (see below), whose sum is σ = 4613985540864. Its totient is φ = 1247391591552.

The previous prime is 2565631320311. The next prime is 2565631320377. The reversal of 2565631320332 is 2330231365652.

It is a self number, because there is not a number n which added to its sum of digits gives 2565631320332.

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, 4985708 + ... + 5476179.

It is an arithmetic number, because the mean of its divisors is an integer number (192249397536).

Almost surely, 2^{2565631320332} is an apocalyptic number.

It is an amenable number.

2565631320332 is a deficient number, since it is larger than the sum of its proper divisors (2048354220532).

2565631320332 is a wasteful number, since it uses less digits than its factorization.

2565631320332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10463585 (or 10463583 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 41.

Adding to 2565631320332 its reverse (2330231365652), we get a palindrome (4895862685984).

The spelling of 2565631320332 in words is "two trillion, five hundred sixty-five billion, six hundred thirty-one million, three hundred twenty thousand, three hundred thirty-two".