99921176316 has 288 divisors, whose sum is σ = 291600691200. Its totient is φ = 29540609280.

The previous prime is 99921176297. The next prime is 99921176317. The reversal of 99921176316 is 61367112999.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99921176317) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 164614485 + ... + 164615091.

It is an arithmetic number, because the mean of its divisors is an integer number (1012502400).

Almost surely, 2^99921176316 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 99921176316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145800345600).

99921176316 is an abundant number, since it is smaller than the sum of its proper divisors (191679514884).

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

99921176316 is a wasteful number, since it uses less digits than its factorization.

99921176316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 965 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The spelling of 99921176316 in words is "ninety-nine billion, nine hundred twenty-one million, one hundred seventy-six thousand, three hundred sixteen".