99676592656 has 15 divisors (see below), whose sum is σ = 193125845101. Its totient is φ = 49837664896.

The previous prime is 99676592633. The next prime is 99676592669. The reversal of 99676592656 is 65629567699.

It is a happy number.

The square root of 99676592656 is 315716.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 97022282256 + 2654310400 = 311484^2 + 51520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1223400 + ... + 1302328.

Almost surely, 2^99676592656 is an apocalyptic number.

99676592656 is the 315716-th square number.

It is an amenable number.

99676592656 is a deficient number, since it is larger than the sum of its proper divisors (93449252445).

99676592656 is an frugal number, since it uses more digits than its factorization.

99676592656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157866 (or 78931 counting only the distinct ones).

The product of its digits is 330674400, while the sum is 70.

The spelling of 99676592656 in words is "ninety-nine billion, six hundred seventy-six million, five hundred ninety-two thousand, six hundred fifty-six".