99666672 has 40 divisors (see below), whose sum is σ = 294254976. Its totient is φ = 28476096.

The previous prime is 99666667. The next prime is 99666709. The reversal of 99666672 is 27666699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147978 + ... + 148649.

Almost surely, 2^99666672 is an apocalyptic number.

It is an amenable number.

99666672 is an abundant number, since it is smaller than the sum of its proper divisors (194588304).

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

99666672 is a wasteful number, since it uses less digits than its factorization.

99666672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296645 (or 296639 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 99666672 is about 9983.3196883602. The cubic root of 99666672 is about 463.6425854396.

The spelling of 99666672 in words is "ninety-nine million, six hundred sixty-six thousand, six hundred seventy-two".