99601986672 has 120 divisors (see below), whose sum is σ = 292034562560. Its totient is φ = 31650030720.

The previous prime is 99601986667. The next prime is 99601986683. The reversal of 99601986672 is 27668910699.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 132579 + ... + 465597.

Almost surely, 2^99601986672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99601986672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146017281280).

99601986672 is an abundant number, since it is smaller than the sum of its proper divisors (192432575888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99601986672 is a wasteful number, since it uses less digits than its factorization.

99601986672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333131 (or 333122 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 99601986672 in words is "ninety-nine billion, six hundred one million, nine hundred eighty-six thousand, six hundred seventy-two".