99136372500 has 960 divisors, whose sum is σ = 372840652800. Its totient is φ = 22550400000.

The previous prime is 99136372493. The next prime is 99136372519. The reversal of 99136372500 is 527363199.

99136372500 is a `hidden beast` number, since 9 + 9 + 1 + 3 + 637 + 2 + 5 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 1358032464 + ... + 1358032536.

It is an arithmetic number, because the mean of its divisors is an integer number (388375680).

Almost surely, 2^99136372500 is an apocalyptic number.

99136372500 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 99136372500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186420326400).

99136372500 is an abundant number, since it is smaller than the sum of its proper divisors (273704280300).

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

99136372500 is a wasteful number, since it uses less digits than its factorization.

99136372500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The spelling of 99136372500 in words is "ninety-nine billion, one hundred thirty-six million, three hundred seventy-two thousand, five hundred".