99664832686 has 16 divisors (see below), whose sum is σ = 150130641024. Its totient is φ = 49621674424.

The previous prime is 99664832681. The next prime is 99664832717. The reversal of 99664832686 is 68623846699.

It is a super-3 number, since 3×99664832686³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99664832681) 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, 419001 + ... + 612283.

It is an arithmetic number, because the mean of its divisors is an integer number (9383165064).

Almost surely, 2^99664832686 is an apocalyptic number.

99664832686 is a deficient number, since it is larger than the sum of its proper divisors (50465808338).

99664832686 is a wasteful number, since it uses less digits than its factorization.

99664832686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194375.

The product of its digits is 161243136, while the sum is 67.

The spelling of 99664832686 in words is "ninety-nine billion, six hundred sixty-four million, eight hundred thirty-two thousand, six hundred eighty-six".