561044653260 has 96 divisors (see below), whose sum is σ = 1933446208512. Its totient is φ = 118374255360.

The previous prime is 561044653231. The next prime is 561044653283. The reversal of 561044653260 is 62356440165.

It is a super-2 number, since 2×561044653260² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51372256 + ... + 51383175.

It is an arithmetic number, because the mean of its divisors is an integer number (20140064672).

Almost surely, 2^561044653260 is an apocalyptic number.

It is an amenable number.

561044653260 is an abundant number, since it is smaller than the sum of its proper divisors (1372401555252).

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

561044653260 is a wasteful number, since it uses less digits than its factorization.

561044653260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102755463 (or 102755461 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 561044653260 in words is "five hundred sixty-one billion, forty-four million, six hundred fifty-three thousand, two hundred sixty".