15975388020 has 48 divisors (see below), whose sum is σ = 44738483328. Its totient is φ = 4259399040.

The previous prime is 15975387973. The next prime is 15975388049. The reversal of 15975388020 is 2088357951.

15975388020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 415825 + ... + 452615.

It is an arithmetic number, because the mean of its divisors is an integer number (932051736).

Almost surely, 2^15975388020 is an apocalyptic number.

15975388020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15975388020 is an abundant number, since it is smaller than the sum of its proper divisors (28763095308).

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

15975388020 is a wasteful number, since it uses less digits than its factorization.

15975388020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44040 (or 44038 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 15975388020 in words is "fifteen billion, nine hundred seventy-five million, three hundred eighty-eight thousand, twenty".