99950805999 has 36 divisors (see below), whose sum is σ = 159849978288. Its totient is φ = 60133993920.

The previous prime is 99950805973. The next prime is 99950806013.

99950805999 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99950805999 - 2⁵ = 99950805967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99950805919) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 185779 + ... + 484164.

Almost surely, 2^99950805999 is an apocalyptic number.

99950805999 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99950805999 is a deficient number, since it is larger than the sum of its proper divisors (59899172289).

99950805999 is a wasteful number, since it uses less digits than its factorization.

99950805999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670108 (or 670094 counting only the distinct ones).

The product of its (nonzero) digits is 106288200, while the sum is 72.

The spelling of 99950805999 in words is "ninety-nine billion, nine hundred fifty million, eight hundred five thousand, nine hundred ninety-nine".