99531524736 has 288 divisors, whose sum is σ = 339920736480. Its totient is φ = 28435898880.

The previous prime is 99531524717. The next prime is 99531524753. The reversal of 99531524736 is 63742513599.

99531524736 is a `hidden beast` number, since 9 + 95 + 31 + 52 + 473 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5870191 + ... + 5887121.

It is an arithmetic number, because the mean of its divisors is an integer number (1180280335).

Almost surely, 2^99531524736 is an apocalyptic number.

99531524736 is a gapful number since it is divisible by the number (96) 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 99531524736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169960368240).

99531524736 is an abundant number, since it is smaller than the sum of its proper divisors (240389211744).

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

99531524736 is an frugal number, since it uses more digits than its factorization.

99531524736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976 (or 16943 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The spelling of 99531524736 in words is "ninety-nine billion, five hundred thirty-one million, five hundred twenty-four thousand, seven hundred thirty-six".