99512665 has 8 divisors (see below), whose sum is σ = 136474560. Its totient is φ = 68237232.

The previous prime is 99512657. The next prime is 99512683. The reversal of 99512665 is 56621599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99512665 - 2³ = 99512657 is a prime.

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, 1421575 + ... + 1421644.

It is an arithmetic number, because the mean of its divisors is an integer number (17059320).

Almost surely, 2^99512665 is an apocalyptic number.

It is an amenable number.

99512665 is a deficient number, since it is larger than the sum of its proper divisors (36961895).

99512665 is a wasteful number, since it uses less digits than its factorization.

99512665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843231.

The product of its digits is 145800, while the sum is 43.

The square root of 99512665 is about 9975.6034905163. The cubic root of 99512665 is about 463.4036522962.

The spelling of 99512665 in words is "ninety-nine million, five hundred twelve thousand, six hundred sixty-five".