99089917960 has 128 divisors (see below), whose sum is σ = 256938998400. Its totient is φ = 34013952000.

The previous prime is 99089917907. The next prime is 99089917991. The reversal of 99089917960 is 6971998099.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2328070 + ... + 2370250.

It is an arithmetic number, because the mean of its divisors is an integer number (2007335925).

Almost surely, 2^99089917960 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 99089917960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128469499200).

99089917960 is an abundant number, since it is smaller than the sum of its proper divisors (157849080440).

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

99089917960 is a wasteful number, since it uses less digits than its factorization.

99089917960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42503 (or 42499 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 67.

The spelling of 99089917960 in words is "ninety-nine billion, eighty-nine million, nine hundred seventeen thousand, nine hundred sixty".