561604236000 has 96 divisors (see below), whose sum is σ = 1839815516448. Its totient is φ = 149761126400.

The previous prime is 561604235999. The next prime is 561604236023. The reversal of 561604236000 is 632406165.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23388177 + ... + 23412176.

It is an arithmetic number, because the mean of its divisors is an integer number (19164744963).

Almost surely, 2^561604236000 is an apocalyptic number.

561604236000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561604236000 is an abundant number, since it is smaller than the sum of its proper divisors (1278211280448).

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

561604236000 is a wasteful number, since it uses less digits than its factorization.

561604236000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46800381 (or 46800363 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 561604236000 in words is "five hundred sixty-one billion, six hundred four million, two hundred thirty-six thousand".