99290644992 has 1600 divisors, whose sum is σ = 410682286080. Its totient is φ = 23091609600.

The previous prime is 99290644987. The next prime is 99290645021. The reversal of 99290644992 is 29944609299.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1682892259 + ... + 1682892317.

Almost surely, 2^99290644992 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 99290644992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205341143040).

99290644992 is an abundant number, since it is smaller than the sum of its proper divisors (311391641088).

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

99290644992 is a wasteful number, since it uses less digits than its factorization.

99290644992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The spelling of 99290644992 in words is "ninety-nine billion, two hundred ninety million, six hundred forty-four thousand, nine hundred ninety-two".