15224504220 has 72 divisors (see below), whose sum is σ = 46202017680. Its totient is φ = 4058019840.

The previous prime is 15224504213. The next prime is 15224504231. The reversal of 15224504220 is 2240542251.

15224504220 is a `hidden beast` number, since 15 + 224 + 5 + 0 + 422 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402940 + ... + 439100.

It is an arithmetic number, because the mean of its divisors is an integer number (641694690).

Almost surely, 2^15224504220 is an apocalyptic number.

15224504220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15224504220 is an abundant number, since it is smaller than the sum of its proper divisors (30977513460).

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

15224504220 is a wasteful number, since it uses less digits than its factorization.

15224504220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38515 (or 38510 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The spelling of 15224504220 in words is "fifteen billion, two hundred twenty-four million, five hundred four thousand, two hundred twenty".