99951642612 has 72 divisors (see below), whose sum is σ = 254139232256. Its totient is φ = 33121980864.

The previous prime is 99951642599. The next prime is 99951642641. The reversal of 99951642612 is 21624615999.

99951642612 is a `hidden beast` number, since 9 + 9 + 9 + 5 + 16 + 4 + 2 + 612 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6068973 + ... + 6085419.

Almost surely, 2^99951642612 is an apocalyptic number.

It is an amenable number.

99951642612 is an abundant number, since it is smaller than the sum of its proper divisors (154187589644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99951642612 is a wasteful number, since it uses less digits than its factorization.

99951642612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17437 (or 17432 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The spelling of 99951642612 in words is "ninety-nine billion, nine hundred fifty-one million, six hundred forty-two thousand, six hundred twelve".