15604164432 has 80 divisors (see below), whose sum is σ = 44807400000. Its totient is φ = 5199336576.

The previous prime is 15604164403. The next prime is 15604164461. The reversal of 15604164432 is 23446140651.

15604164432 is a `hidden beast` number, since 1 + 5 + 6 + 0 + 4 + 1 + 644 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (15604164403) and next prime (15604164461).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1419694 + ... + 1430642.

It is an arithmetic number, because the mean of its divisors is an integer number (560092500).

Almost surely, 2^15604164432 is an apocalyptic number.

15604164432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15604164432 is an abundant number, since it is smaller than the sum of its proper divisors (29203235568).

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

15604164432 is a wasteful number, since it uses less digits than its factorization.

15604164432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14265 (or 14253 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 15604164432 in words is "fifteen billion, six hundred four million, one hundred sixty-four thousand, four hundred thirty-two".