99381168 has 60 divisors (see below), whose sum is σ = 288441608. Its totient is φ = 33125760.

The previous prime is 99381151. The next prime is 99381169. The reversal of 99381168 is 86118399.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (99381169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8893 + ... + 16668.

Almost surely, 2^99381168 is an apocalyptic number.

It is an amenable number.

99381168 is an abundant number, since it is smaller than the sum of its proper divisors (189060440).

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

99381168 is a wasteful number, since it uses less digits than its factorization.

99381168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25584 (or 25566 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 99381168 is about 9969.0103821794. The cubic root of 99381168 is about 463.1994469644.

The spelling of 99381168 in words is "ninety-nine million, three hundred eighty-one thousand, one hundred sixty-eight".