15138805164 has 48 divisors (see below), whose sum is σ = 40444889856. Its totient is φ = 4317364800.

The previous prime is 15138805153. The next prime is 15138805207. The reversal of 15138805164 is 46150883151.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121122 + ... + 212009.

It is an arithmetic number, because the mean of its divisors is an integer number (842601872).

Almost surely, 2^15138805164 is an apocalyptic number.

15138805164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15138805164 is an abundant number, since it is smaller than the sum of its proper divisors (25306084692).

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

15138805164 is a wasteful number, since it uses less digits than its factorization.

15138805164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333686 (or 333684 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 15138805164 in words is "fifteen billion, one hundred thirty-eight million, eight hundred five thousand, one hundred sixty-four".