99558144 has 108 divisors (see below), whose sum is σ = 328111056. Its totient is φ = 28440576.

The previous prime is 99558139. The next prime is 99558149. The reversal of 99558144 is 44185599.

99558144 is a `hidden beast` number, since 99 + 558 + 1 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (99558139) and next prime (99558149).

It is a self number, because there is not a number n which added to its sum of digits gives 99558144.

It is not an unprimeable number, because it can be changed into a prime (99558149) 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, 13042 + ... + 19214.

Almost surely, 2^99558144 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 99558144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164055528).

99558144 is an abundant number, since it is smaller than the sum of its proper divisors (228552912).

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

99558144 is a wasteful number, since it uses less digits than its factorization.

99558144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202 (or 6185 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 99558144 is about 9977.8827413435. The cubic root of 99558144 is about 463.4742360253.

The spelling of 99558144 in words is "ninety-nine million, five hundred fifty-eight thousand, one hundred forty-four".