99636207605 has 32 divisors (see below), whose sum is σ = 134937363456. Its totient is φ = 69995200000.

The previous prime is 99636207599. The next prime is 99636207653. The reversal of 99636207605 is 50670263699.

It is not a de Polignac number, because 99636207605 - 2⁴ = 99636207589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9020 + ... + 446490.

It is an arithmetic number, because the mean of its divisors is an integer number (4216792608).

Almost surely, 2^99636207605 is an apocalyptic number.

It is an amenable number.

99636207605 is a deficient number, since it is larger than the sum of its proper divisors (35301155851).

99636207605 is a wasteful number, since it uses less digits than its factorization.

99636207605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437629.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 99636207605 in words is "ninety-nine billion, six hundred thirty-six million, two hundred seven thousand, six hundred five".