15204521104 has 20 divisors (see below), whose sum is σ = 29507794540. Its totient is φ = 7589606400.

The previous prime is 15204521093. The next prime is 15204521201. The reversal of 15204521104 is 40112540251.

It can be written as a sum of positive squares in 2 ways, for example, as 12023561104 + 3180960000 = 109652^2 + 56400^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780969 + ... + 800200.

It is an arithmetic number, because the mean of its divisors is an integer number (1475389727).

Almost surely, 2^15204521104 is an apocalyptic number.

It is an amenable number.

15204521104 is a deficient number, since it is larger than the sum of its proper divisors (14303273436).

15204521104 is a wasteful number, since it uses less digits than its factorization.

15204521104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581778 (or 1581772 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 15204521104 in words is "fifteen billion, two hundred four million, five hundred twenty-one thousand, one hundred four".