15150115872 has 72 divisors (see below), whose sum is σ = 43098561324. Its totient is φ = 5048231424.

The previous prime is 15150115837. The next prime is 15150115907. The reversal of 15150115872 is 27851105151.

15150115872 is a `hidden beast` number, since 15 + 1 + 50 + 11 + 587 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (15150115837) and next prime (15150115907).

It can be written as a sum of positive squares in 2 ways, for example, as 11932503696 + 3217612176 = 109236^2 + 56724^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975238 + ... + 990650.

Almost surely, 2^15150115872 is an apocalyptic number.

15150115872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15150115872 is an abundant number, since it is smaller than the sum of its proper divisors (27948445452).

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

15150115872 is a wasteful number, since it uses less digits than its factorization.

15150115872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18842 (or 18831 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 36.

The spelling of 15150115872 in words is "fifteen billion, one hundred fifty million, one hundred fifteen thousand, eight hundred seventy-two".