99271189356 has 12 divisors (see below), whose sum is σ = 231632775192. Its totient is φ = 33090396448.

The previous prime is 99271189343. The next prime is 99271189397. The reversal of 99271189356 is 65398117299.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 99271189356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4136299545 + ... + 4136299568.

It is an arithmetic number, because the mean of its divisors is an integer number (19302731266).

Almost surely, 2^99271189356 is an apocalyptic number.

It is an amenable number.

99271189356 is an abundant number, since it is smaller than the sum of its proper divisors (132361585836).

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

99271189356 is a wasteful number, since it uses less digits than its factorization.

99271189356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272599120 (or 8272599118 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 60.

The spelling of 99271189356 in words is "ninety-nine billion, two hundred seventy-one million, one hundred eighty-nine thousand, three hundred fifty-six".