15324020020 has 24 divisors (see below), whose sum is σ = 33579592704. Its totient is φ = 5863103136.

The previous prime is 15324020017. The next prime is 15324020051. The reversal of 15324020020 is 2002042351.

It is a self number, because there is not a number n which added to its sum of digits gives 15324020020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16656084 + ... + 16657003.

It is an arithmetic number, because the mean of its divisors is an integer number (1399149696).

Almost surely, 2^15324020020 is an apocalyptic number.

15324020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15324020020 is an abundant number, since it is smaller than the sum of its proper divisors (18255572684).

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

15324020020 is a wasteful number, since it uses less digits than its factorization.

15324020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33313119 (or 33313117 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 15324020020 its reverse (2002042351), we get a palindrome (17326062371).

The spelling of 15324020020 in words is "fifteen billion, three hundred twenty-four million, twenty thousand, twenty".