99656506 has 16 divisors (see below), whose sum is σ = 154552320. Its totient is φ = 48144240.

The previous prime is 99656471. The next prime is 99656521. The reversal of 99656506 is 60565699.

It is a happy 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, 68535 + ... + 69973.

It is an arithmetic number, because the mean of its divisors is an integer number (9659520).

Almost surely, 2^99656506 is an apocalyptic number.

99656506 is a deficient number, since it is larger than the sum of its proper divisors (54895814).

99656506 is a wasteful number, since it uses less digits than its factorization.

99656506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589.

The product of its (nonzero) digits is 437400, while the sum is 46.

The square root of 99656506 is about 9982.8105260994. The cubic root of 99656506 is about 463.6268210565.

It can be divided in two parts, 9965 and 6506, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 99656506 in words is "ninety-nine million, six hundred fifty-six thousand, five hundred six".