99515325768 has 64 divisors (see below), whose sum is σ = 254810188800. Its totient is φ = 32375416320.

The previous prime is 99515325731. The next prime is 99515325809. The reversal of 99515325768 is 86752351599.

It is a super-2 number, since 2×99515325768² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38148 + ... + 447756.

It is an arithmetic number, because the mean of its divisors is an integer number (3981409200).

Almost surely, 2^99515325768 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 99515325768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127405094400).

99515325768 is an abundant number, since it is smaller than the sum of its proper divisors (155294863032).

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

99515325768 is a wasteful number, since it uses less digits than its factorization.

99515325768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409862 (or 409858 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 60.

The spelling of 99515325768 in words is "ninety-nine billion, five hundred fifteen million, three hundred twenty-five thousand, seven hundred sixty-eight".