12500166650 has 48 divisors (see below), whose sum is σ = 23822118144. Its totient is φ = 4877402880.

The previous prime is 12500166631. The next prime is 12500166677. The reversal of 12500166650 is 5666100521.

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 23 ways as a sum of consecutive naturals, for example, 1852082 + ... + 1858818.

It is an arithmetic number, because the mean of its divisors is an integer number (496294128).

Almost surely, 2^12500166650 is an apocalyptic number.

12500166650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12500166650 is a deficient number, since it is larger than the sum of its proper divisors (11321951494).

12500166650 is a wasteful number, since it uses less digits than its factorization.

12500166650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655 (or 7650 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 12500166650 in words is "twelve billion, five hundred million, one hundred sixty-six thousand, six hundred fifty".