15012662540 has 12 divisors (see below), whose sum is σ = 31526591376. Its totient is φ = 6005065008.

The previous prime is 15012662531. The next prime is 15012662579. The reversal of 15012662540 is 4526621051.

It is a junction number, because it is equal to n+sod(n) for n = 15012662497 and 15012662506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375316544 + ... + 375316583.

It is an arithmetic number, because the mean of its divisors is an integer number (2627215948).

Almost surely, 2^15012662540 is an apocalyptic number.

15012662540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15012662540 is an abundant number, since it is smaller than the sum of its proper divisors (16513928836).

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

15012662540 is a wasteful number, since it uses less digits than its factorization.

15012662540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750633136 (or 750633134 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 15012662540 in words is "fifteen billion, twelve million, six hundred sixty-two thousand, five hundred forty".