2561572664310 has 64 divisors (see below), whose sum is σ = 6887924169984. Its totient is φ = 604203868800.

The previous prime is 2561572664293. The next prime is 2561572664311. The reversal of 2561572664310 is 134662751652.

It is a super-2 number, since 2×2561572664310² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2561572664310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561572664311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104884296 + ... + 104908715.

It is an arithmetic number, because the mean of its divisors is an integer number (107623815156).

Almost surely, 2^{2561572664310} is an apocalyptic number.

2561572664310 is an abundant number, since it is smaller than the sum of its proper divisors (4326351505674).

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

2561572664310 is a wasteful number, since it uses less digits than its factorization.

2561572664310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209793069.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 2561572664310 in words is "two trillion, five hundred sixty-one billion, five hundred seventy-two million, six hundred sixty-four thousand, three hundred ten".