99999000630 has 64 divisors (see below), whose sum is σ = 266993395200. Its totient is φ = 26633460960.

The previous prime is 99999000589. The next prime is 99999000707. The reversal of 99999000630 is 3600099999.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9370 + ... + 447309.

It is an arithmetic number, because the mean of its divisors is an integer number (4171771800).

Almost surely, 2^99999000630 is an apocalyptic number.

99999000630 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

99999000630 is an abundant number, since it is smaller than the sum of its proper divisors (166994394570).

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

99999000630 is a wasteful number, since it uses less digits than its factorization.

99999000630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457506 (or 457500 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 54.

The spelling of 99999000630 in words is "ninety-nine billion, nine hundred ninety-nine million, six hundred thirty", and thus it is an aban number.