15597504940 has 24 divisors (see below), whose sum is σ = 33092442432. Its totient is φ = 6174681600.

The previous prime is 15597504931. The next prime is 15597504941. The reversal of 15597504940 is 4940579551.

It is a happy number.

15597504940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15597504941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4018036 + ... + 4021915.

It is an arithmetic number, because the mean of its divisors is an integer number (1378851768).

Almost surely, 2^15597504940 is an apocalyptic number.

15597504940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15597504940 is an abundant number, since it is smaller than the sum of its proper divisors (17494937492).

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

15597504940 is a wasteful number, since it uses less digits than its factorization.

15597504940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040057 (or 8040055 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 15597504940 in words is "fifteen billion, five hundred ninety-seven million, five hundred four thousand, nine hundred forty".