15604251400 has 96 divisors (see below), whose sum is σ = 36951295680. Its totient is φ = 6126624000.

The previous prime is 15604251349. The next prime is 15604251449. The reversal of 15604251400 is 415240651.

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, 7697187 + ... + 7699213.

It is an arithmetic number, because the mean of its divisors is an integer number (384909330).

Almost surely, 2^15604251400 is an apocalyptic number.

15604251400 is a gapful number since it is divisible by the number (10) 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 15604251400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18475647840).

15604251400 is an abundant number, since it is smaller than the sum of its proper divisors (21347044280).

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

15604251400 is a wasteful number, since it uses less digits than its factorization.

15604251400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 15604251400 in words is "fifteen billion, six hundred four million, two hundred fifty-one thousand, four hundred".