561602925720 has 128 divisors (see below), whose sum is σ = 1872300024000. Its totient is φ = 149737559040.

The previous prime is 561602925713. The next prime is 561602925769. The reversal of 561602925720 is 27529206165.

561602925720 is a `hidden beast` number, since 5 + 616 + 0 + 2 + 9 + 2 + 5 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7597740 + ... + 7671300.

Almost surely, 2^561602925720 is an apocalyptic number.

It is an amenable number.

561602925720 is an abundant number, since it is smaller than the sum of its proper divisors (1310697098280).

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

561602925720 is a wasteful number, since it uses less digits than its factorization.

561602925720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80650 (or 80640 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 561602925720 in words is "five hundred sixty-one billion, six hundred two million, nine hundred twenty-five thousand, seven hundred twenty".