99918549964 has 12 divisors (see below), whose sum is σ = 179122278888. Its totient is φ = 48740756000.

The previous prime is 99918549959. The next prime is 99918549979. The reversal of 99918549964 is 46994581999.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304629562 + ... + 304629889.

It is an arithmetic number, because the mean of its divisors is an integer number (14926856574).

Almost surely, 2^99918549964 is an apocalyptic number.

It is an amenable number.

99918549964 is a deficient number, since it is larger than the sum of its proper divisors (79203728924).

99918549964 is a wasteful number, since it uses less digits than its factorization.

99918549964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609259496 (or 609259494 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 73.

The spelling of 99918549964 in words is "ninety-nine billion, nine hundred eighteen million, five hundred forty-nine thousand, nine hundred sixty-four".