12516527650 has 48 divisors (see below), whose sum is σ = 25408025568. Its totient is φ = 4549520000.

The previous prime is 12516527641. The next prime is 12516527663. The reversal of 12516527650 is 5672561521.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2154750 + ... + 2160550.

It is an arithmetic number, because the mean of its divisors is an integer number (529333866).

Almost surely, 2^12516527650 is an apocalyptic number.

12516527650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12516527650 is an abundant number, since it is smaller than the sum of its proper divisors (12891497918).

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

12516527650 is a wasteful number, since it uses less digits than its factorization.

12516527650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9747 (or 9742 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 12516527650 in words is "twelve billion, five hundred sixteen million, five hundred twenty-seven thousand, six hundred fifty".