15605872464 has 160 divisors (see below), whose sum is σ = 49700818944. Its totient is φ = 4109022720.

The previous prime is 15605872453. The next prime is 15605872511. The reversal of 15605872464 is 46427850651.

15605872464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2980729 + ... + 2985959.

Almost surely, 2^15605872464 is an apocalyptic number.

15605872464 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 15605872464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24850409472).

15605872464 is an abundant number, since it is smaller than the sum of its proper divisors (34094946480).

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

15605872464 is a wasteful number, since it uses less digits than its factorization.

15605872464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 15605872464 in words is "fifteen billion, six hundred five million, eight hundred seventy-two thousand, four hundred sixty-four".