99638836101 has 32 divisors (see below), whose sum is σ = 169914393600. Its totient is φ = 56526847920.

The previous prime is 99638836081. The next prime is 99638836103. The reversal of 99638836101 is 10163883699.

It is not a de Polignac number, because 99638836101 - 2¹⁴ = 99638819717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99638836103) 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, 1870095 + ... + 1922636.

It is an arithmetic number, because the mean of its divisors is an integer number (5309824800).

Almost surely, 2^99638836101 is an apocalyptic number.

It is an amenable number.

99638836101 is a deficient number, since it is larger than the sum of its proper divisors (70275557499).

99638836101 is a wasteful number, since it uses less digits than its factorization.

99638836101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792886 (or 3792880 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 99638836101 in words is "ninety-nine billion, six hundred thirty-eight million, eight hundred thirty-six thousand, one hundred one".