99664980331 has 16 divisors (see below), whose sum is σ = 116067826368. Its totient is φ = 83803824000.

The previous prime is 99664980323. The next prime is 99664980361. The reversal of 99664980331 is 13308946699.

It is a cyclic number.

It is not a de Polignac number, because 99664980331 - 2³ = 99664980323 is a prime.

It is a super-2 number, since 2×99664980331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99664980361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3719281 + ... + 3745981.

It is an arithmetic number, because the mean of its divisors is an integer number (7254239148).

Almost surely, 2^99664980331 is an apocalyptic number.

99664980331 is a deficient number, since it is larger than the sum of its proper divisors (16402846037).

99664980331 is a wasteful number, since it uses less digits than its factorization.

99664980331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36822.

The product of its (nonzero) digits is 7558272, while the sum is 58.

The spelling of 99664980331 in words is "ninety-nine billion, six hundred sixty-four million, nine hundred eighty thousand, three hundred thirty-one".