15320663204 has 72 divisors (see below), whose sum is σ = 34106647680. Its totient is φ = 5954558400.

The previous prime is 15320663159. The next prime is 15320663213. The reversal of 15320663204 is 40236602351.

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, 899237 + ... + 916115.

It is an arithmetic number, because the mean of its divisors is an integer number (473703440).

Almost surely, 2^15320663204 is an apocalyptic number.

15320663204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15320663204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17053323840).

15320663204 is an abundant number, since it is smaller than the sum of its proper divisors (18785984476).

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

15320663204 is a wasteful number, since it uses less digits than its factorization.

15320663204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17329 (or 17320 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 15320663204 in words is "fifteen billion, three hundred twenty million, six hundred sixty-three thousand, two hundred four".