99680562478 has 16 divisors (see below), whose sum is σ = 170889919200. Its totient is φ = 42718002336.

The previous prime is 99680562427. The next prime is 99680562547. The reversal of 99680562478 is 87426508699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105948 + ... + 458896.

It is an arithmetic number, because the mean of its divisors is an integer number (10680619950).

Almost surely, 2^99680562478 is an apocalyptic number.

99680562478 is a deficient number, since it is larger than the sum of its proper divisors (71209356722).

99680562478 is a wasteful number, since it uses less digits than its factorization.

99680562478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373131.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 99680562478 in words is "ninety-nine billion, six hundred eighty million, five hundred sixty-two thousand, four hundred seventy-eight".