99309318943653 has 168 divisors, whose sum is σ = 191570609177472. Its totient is φ = 50105400738624.

The previous prime is 99309318943619. The next prime is 99309318943669. The reversal of 99309318943653 is 35634981390399.

99309318943653 is a `hidden beast` number, since 9 + 9 + 3 + 0 + 9 + 3 + 189 + 436 + 5 + 3 = 666.

It is not a de Polignac number, because 99309318943653 - 2¹⁰ = 99309318942629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99309318943673) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 33678400 + ... + 36508262.

It is an arithmetic number, because the mean of its divisors is an integer number (1140301245104).

Almost surely, 2^{99309318943653} is an apocalyptic number.

It is an amenable number.

99309318943653 is a deficient number, since it is larger than the sum of its proper divisors (92261290233819).

99309318943653 is a wasteful number, since it uses less digits than its factorization.

99309318943653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829947 (or 2829909 counting only the distinct ones).

The product of its (nonzero) digits is 510183360, while the sum is 72.

The spelling of 99309318943653 in words is "ninety-nine trillion, three hundred nine billion, three hundred eighteen million, nine hundred forty-three thousand, six hundred fifty-three".