99964455325 has 72 divisors (see below), whose sum is σ = 149630690880. Its totient is φ = 66007468800.

The previous prime is 99964455289. The next prime is 99964455421. The reversal of 99964455325 is 52355446999.

It is not a de Polignac number, because 99964455325 - 2⁹ = 99964454813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3726561 + ... + 3753289.

It is an arithmetic number, because the mean of its divisors is an integer number (2078204040).

Almost surely, 2^99964455325 is an apocalyptic number.

It is an amenable number.

99964455325 is a deficient number, since it is larger than the sum of its proper divisors (49666235555).

99964455325 is a wasteful number, since it uses less digits than its factorization.

99964455325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26867 (or 26855 counting only the distinct ones).

The product of its digits is 52488000, while the sum is 61.

The spelling of 99964455325 in words is "ninety-nine billion, nine hundred sixty-four million, four hundred fifty-five thousand, three hundred twenty-five".