15120315504 has 120 divisors (see below), whose sum is σ = 48431508320. Its totient is φ = 4313793024.

The previous prime is 15120315487. The next prime is 15120315523. The reversal of 15120315504 is 40551302151.

15120315504 is a `hidden beast` number, since 1 + 5 + 120 + 31 + 5 + 504 = 666.

15120315504 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 23 ways as a sum of consecutive naturals, for example, 704094 + ... + 725250.

Almost surely, 2^15120315504 is an apocalyptic number.

15120315504 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 15120315504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24215754160).

15120315504 is an abundant number, since it is smaller than the sum of its proper divisors (33311192816).

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

15120315504 is a wasteful number, since it uses less digits than its factorization.

15120315504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21887 (or 21878 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 15120315504 its reverse (40551302151), we get a palindrome (55671617655).

The spelling of 15120315504 in words is "fifteen billion, one hundred twenty million, three hundred fifteen thousand, five hundred four".