655120235724 has 96 divisors (see below), whose sum is σ = 1589946624000. Its totient is φ = 209696497920.

The previous prime is 655120235687. The next prime is 655120235767. The reversal of 655120235724 is 427532021556.

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, 56484694 + ... + 56496290.

It is an arithmetic number, because the mean of its divisors is an integer number (16561944000).

Almost surely, 2^655120235724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655120235724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794973312000).

655120235724 is an abundant number, since it is smaller than the sum of its proper divisors (934826388276).

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

655120235724 is a wasteful number, since it uses less digits than its factorization.

655120235724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503 (or 12501 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 655120235724 in words is "six hundred fifty-five billion, one hundred twenty million, two hundred thirty-five thousand, seven hundred twenty-four".