99663249812 has 24 divisors (see below), whose sum is σ = 199408427904. Its totient is φ = 42695265312.

The previous prime is 99663249793. The next prime is 99663249821. The reversal of 99663249812 is 21894236699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662048 + ... + 798519.

It is an arithmetic number, because the mean of its divisors is an integer number (8308684496).

Almost surely, 2^99663249812 is an apocalyptic number.

It is an amenable number.

99663249812 is an abundant number, since it is smaller than the sum of its proper divisors (99745178092).

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

99663249812 is a wasteful number, since it uses less digits than its factorization.

99663249812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463015 (or 1463013 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 59.

The spelling of 99663249812 in words is "ninety-nine billion, six hundred sixty-three million, two hundred forty-nine thousand, eight hundred twelve".