99019901080 has 16 divisors (see below), whose sum is σ = 222794777520. Its totient is φ = 39607960416.

The previous prime is 99019901077. The next prime is 99019901081. The reversal of 99019901080 is 8010991099.

It is a self number, because there is not a number n which added to its sum of digits gives 99019901080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99019901081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237748724 + ... + 1237748803.

It is an arithmetic number, because the mean of its divisors is an integer number (13924673595).

Almost surely, 2^99019901080 is an apocalyptic number.

It is an amenable number.

99019901080 is an abundant number, since it is smaller than the sum of its proper divisors (123774876440).

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

99019901080 is a wasteful number, since it uses less digits than its factorization.

99019901080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475497538 (or 2475497534 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 46.

The spelling of 99019901080 in words is "ninety-nine billion, nineteen million, nine hundred one thousand, eighty".