99638836102 has 16 divisors (see below), whose sum is σ = 170422987392. Its totient is φ = 43282028160.

The previous prime is 99638836081. The next prime is 99638836103. The reversal of 99638836102 is 20163883699.

It is a super-2 number, since 2×99638836102² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 112713174 + ... + 112714057.

It is an arithmetic number, because the mean of its divisors is an integer number (10651436712).

Almost surely, 2^99638836102 is an apocalyptic number.

99638836102 is a deficient number, since it is larger than the sum of its proper divisors (70784151290).

99638836102 is a wasteful number, since it uses less digits than its factorization.

99638836102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225427263.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 99638836102 in words is "ninety-nine billion, six hundred thirty-eight million, eight hundred thirty-six thousand, one hundred two".