99564388353 has 32 divisors (see below), whose sum is σ = 152447462400. Its totient is φ = 64156406400.

The previous prime is 99564388303. The next prime is 99564388367. The reversal of 99564388353 is 35388346599.

99564388353 is a `hidden beast` number, since 9 + 9 + 564 + 38 + 8 + 35 + 3 = 666.

It is not a de Polignac number, because 99564388353 - 2¹⁸ = 99564126209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99564388303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614733 + ... + 759621.

It is an arithmetic number, because the mean of its divisors is an integer number (4763983200).

It is a Proth number, since it is equal to 11869 ⋅ 2²³ + 1 and 11869 < 2²³.

Almost surely, 2^99564388353 is an apocalyptic number.

99564388353 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

99564388353 is a deficient number, since it is larger than the sum of its proper divisors (52883074047).

99564388353 is a wasteful number, since it uses less digits than its factorization.

99564388353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145750 (or 145744 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 63.

The spelling of 99564388353 in words is "ninety-nine billion, five hundred sixty-four million, three hundred eighty-eight thousand, three hundred fifty-three".