99668416 has 56 divisors (see below), whose sum is σ = 211720176. Its totient is φ = 46387200.

The previous prime is 99668383. The next prime is 99668423. The reversal of 99668416 is 61486699.

It is a self number, because there is not a number n which added to its sum of digits gives 99668416.

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, 109435 + ... + 110341.

Almost surely, 2^99668416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99668416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105860088).

99668416 is an abundant number, since it is smaller than the sum of its proper divisors (112051760).

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

99668416 is a wasteful number, since it uses less digits than its factorization.

99668416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1027 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 99668416 is about 9983.4070336734. The cubic root of 99668416 is about 463.6452897469.

The spelling of 99668416 in words is "ninety-nine million, six hundred sixty-eight thousand, four hundred sixteen".