99976211915 has 16 divisors (see below), whose sum is σ = 122758460928. Its totient is φ = 78129477216.

The previous prime is 99976211887. The next prime is 99976211957. The reversal of 99976211915 is 51911267999.

It is a cyclic number.

It is not a de Polignac number, because 99976211915 - 2²⁸ = 99707776459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283817 + ... + 529626.

It is an arithmetic number, because the mean of its divisors is an integer number (7672403808).

Almost surely, 2^99976211915 is an apocalyptic number.

99976211915 is a deficient number, since it is larger than the sum of its proper divisors (22782249013).

99976211915 is a wasteful number, since it uses less digits than its factorization.

99976211915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814018.

The product of its digits is 2755620, while the sum is 59.

The spelling of 99976211915 in words is "ninety-nine billion, nine hundred seventy-six million, two hundred eleven thousand, nine hundred fifteen".