99664610 has 16 divisors (see below), whose sum is σ = 180603000. Its totient is φ = 39597696.

The previous prime is 99664553. The next prime is 99664613. The reversal of 99664610 is 1646699.

It can be written as a sum of positive squares in 4 ways, for example, as 56355049 + 43309561 = 7507^2 + 6581^2 .

It is not an unprimeable number, because it can be changed into a prime (99664613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31955 + ... + 34934.

Almost surely, 2^99664610 is an apocalyptic number.

99664610 is a deficient number, since it is larger than the sum of its proper divisors (80938390).

99664610 is a wasteful number, since it uses less digits than its factorization.

99664610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67045.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 99664610 is about 9983.2164155647. The cubic root of 99664610 is about 463.6393879895.

The spelling of 99664610 in words is "ninety-nine million, six hundred sixty-four thousand, six hundred ten".