15120115040 has 48 divisors (see below), whose sum is σ = 35797939632. Its totient is φ = 6035065344.

The previous prime is 15120115039. The next prime is 15120115093. The reversal of 15120115040 is 4051102151.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 26459 + ... + 175898.

It is an arithmetic number, because the mean of its divisors is an integer number (745790409).

Almost surely, 2^15120115040 is an apocalyptic number.

15120115040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15120115040 is an abundant number, since it is smaller than the sum of its proper divisors (20677824592).

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

15120115040 is a wasteful number, since it uses less digits than its factorization.

15120115040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202839 (or 202831 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 15120115040 its reverse (4051102151), we get a palindrome (19171217191).

The spelling of 15120115040 in words is "fifteen billion, one hundred twenty million, one hundred fifteen thousand, forty".