99633705685 has 8 divisors (see below), whose sum is σ = 120793029336. Its totient is φ = 78885242880.

The previous prime is 99633705679. The next prime is 99633705697. The reversal of 99633705685 is 58650733699.

It can be written as a sum of positive squares in 4 ways, for example, as 12315228676 + 87318477009 = 110974^2 + 295497^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99633705685 - 2⁵ = 99633705653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102714676 + ... + 102715645.

It is an arithmetic number, because the mean of its divisors is an integer number (15099128667).

Almost surely, 2^99633705685 is an apocalyptic number.

It is an amenable number.

99633705685 is a deficient number, since it is larger than the sum of its proper divisors (21159323651).

99633705685 is a wasteful number, since it uses less digits than its factorization.

99633705685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205430423.

The product of its (nonzero) digits is 36741600, while the sum is 61.

The spelling of 99633705685 in words is "ninety-nine billion, six hundred thirty-three million, seven hundred five thousand, six hundred eighty-five".