99369537799680 has 800 divisors, whose sum is σ = 369015145804800. Its totient is φ = 25530408714240.

The previous prime is 99369537799633. The next prime is 99369537799757. The reversal of 99369537799680 is 8699773596399.

99369537799680 is a `hidden beast` number, since 9 + 9 + 3 + 6 + 9 + 537 + 7 + 9 + 9 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (90).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1459158271 + ... + 1459226369.

It is an arithmetic number, because the mean of its divisors is an integer number (461268932256).

Almost surely, 2^{99369537799680} is an apocalyptic number.

99369537799680 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99369537799680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184507572902400).

99369537799680 is an abundant number, since it is smaller than the sum of its proper divisors (269645608005120).

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

99369537799680 is a wasteful number, since it uses less digits than its factorization.

99369537799680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68392 (or 68367 counting only the distinct ones).

The product of its (nonzero) digits is 37498476960, while the sum is 90.

The spelling of 99369537799680 in words is "ninety-nine trillion, three hundred sixty-nine billion, five hundred thirty-seven million, seven hundred ninety-nine thousand, six hundred eighty".