99812652667 has 16 divisors (see below), whose sum is σ = 125460099072. Its totient is φ = 77292375840.

The previous prime is 99812652623. The next prime is 99812652689. The reversal of 99812652667 is 76625621899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99812652667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99812652697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11664259 + ... + 11672812.

It is an arithmetic number, because the mean of its divisors is an integer number (7841256192).

Almost surely, 2^99812652667 is an apocalyptic number.

99812652667 is a deficient number, since it is larger than the sum of its proper divisors (25647446405).

99812652667 is a wasteful number, since it uses less digits than its factorization.

99812652667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23337138.

The product of its digits is 19595520, while the sum is 61.

The spelling of 99812652667 in words is "ninety-nine billion, eight hundred twelve million, six hundred fifty-two thousand, six hundred sixty-seven".