99840612336 has 80 divisors (see below), whose sum is σ = 266373129600. Its totient is φ = 32199738624.

The previous prime is 99840612293. The next prime is 99840612343. The reversal of 99840612336 is 63321604899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160875 + ... + 474933.

It is an arithmetic number, because the mean of its divisors is an integer number (3329664120).

Almost surely, 2^99840612336 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 99840612336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133186564800).

99840612336 is an abundant number, since it is smaller than the sum of its proper divisors (166532517264).

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

99840612336 is a wasteful number, since it uses less digits than its factorization.

99840612336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314286 (or 314280 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 99840612336 in words is "ninety-nine billion, eight hundred forty million, six hundred twelve thousand, three hundred thirty-six".