220855260788724 has 48 divisors (see below), whose sum is σ = 537755858865792. Its totient is φ = 70414828674432.

The previous prime is 220855260788677. The next prime is 220855260788797. The reversal of 220855260788724 is 427887062558022.

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, 8873839 + ... + 22813494.

It is an arithmetic number, because the mean of its divisors is an integer number (11203247059704).

Almost surely, 2^{220855260788724} is an apocalyptic number.

It is an amenable number.

220855260788724 is an abundant number, since it is smaller than the sum of its proper divisors (316900598077068).

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

220855260788724 is a wasteful number, since it uses less digits than its factorization.

220855260788724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31712616 (or 31712614 counting only the distinct ones).

The product of its (nonzero) digits is 240844800, while the sum is 66.

The spelling of 220855260788724 in words is "two hundred twenty trillion, eight hundred fifty-five billion, two hundred sixty million, seven hundred eighty-eight thousand, seven hundred twenty-four".