99111019392 has 320 divisors, whose sum is σ = 367736307840. Its totient is φ = 25742914560.

The previous prime is 99111019391. The next prime is 99111019393. The reversal of 99111019392 is 29391011199.

It is an interprime number because it is at equal distance from previous prime (99111019391) and next prime (99111019393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99111019391) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 736263 + ... + 860409.

It is an arithmetic number, because the mean of its divisors is an integer number (1149175962).

Almost surely, 2^99111019392 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 99111019392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183868153920).

99111019392 is an abundant number, since it is smaller than the sum of its proper divisors (268625288448).

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

99111019392 is a wasteful number, since it uses less digits than its factorization.

99111019392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124191 (or 124170 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The spelling of 99111019392 in words is "ninety-nine billion, one hundred eleven million, nineteen thousand, three hundred ninety-two".