99660813184 has 16 divisors (see below), whose sum is σ = 198543026520. Its totient is φ = 49830406528.

The previous prime is 99660813179. The next prime is 99660813211. The reversal of 99660813184 is 48131806699.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×99660813184² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389299924 + ... + 389300179.

Almost surely, 2^99660813184 is an apocalyptic number.

It is an amenable number.

99660813184 is a deficient number, since it is larger than the sum of its proper divisors (98882213336).

99660813184 is an equidigital number, since it uses as much as digits as its factorization.

99660813184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778600117 (or 778600105 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 99660813184 in words is "ninety-nine billion, six hundred sixty million, eight hundred thirteen thousand, one hundred eighty-four".