99125432235621 has 96 divisors (see below), whose sum is σ = 165238786073088. Its totient is φ = 58871167467840.

The previous prime is 99125432235607. The next prime is 99125432235647. The reversal of 99125432235621 is 12653223452199.

99125432235621 is a `hidden beast` number, since 9 + 9 + 1 + 2 + 5 + 4 + 3 + 2 + 2 + 3 + 5 + 621 = 666.

It is not a de Polignac number, because 99125432235621 - 2¹⁰ = 99125432234597 is a prime.

It is a super-2 number, since 2×99125432235621² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99125432235721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116737230 + ... + 117583296.

It is an arithmetic number, because the mean of its divisors is an integer number (1721237354928).

Almost surely, 2^{99125432235621} is an apocalyptic number.

It is an amenable number.

99125432235621 is a deficient number, since it is larger than the sum of its proper divisors (66113353837467).

99125432235621 is a wasteful number, since it uses less digits than its factorization.

99125432235621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846973 (or 846961 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 99125432235621 in words is "ninety-nine trillion, one hundred twenty-five billion, four hundred thirty-two million, two hundred thirty-five thousand, six hundred twenty-one".