99668080 has 40 divisors (see below), whose sum is σ = 232766352. Its totient is φ = 39688704.

The previous prime is 99668077. The next prime is 99668081. The reversal of 99668080 is 8086699.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 99668080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99668081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15967 + ... + 21313.

Almost surely, 2^99668080 is an apocalyptic number.

It is an amenable number.

99668080 is an abundant number, since it is smaller than the sum of its proper divisors (133098272).

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

99668080 is a wasteful number, since it uses less digits than its factorization.

99668080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5593 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 99668080 is about 9983.3902057367. The cubic root of 99668080 is about 463.6447687360.

The spelling of 99668080 in words is "ninety-nine million, six hundred sixty-eight thousand, eighty".