99900000999 has 32 divisors (see below), whose sum is σ = 160941205440. Its totient is φ = 60988225536.

The previous prime is 99900000973. The next prime is 99900001013.

99900000999 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99900000999 - 2¹¹ = 99899998951 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99900010999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2924194 + ... + 2958159.

It is an arithmetic number, because the mean of its divisors is an integer number (5029412670).

Almost surely, 2^99900000999 is an apocalyptic number.

99900000999 is a deficient number, since it is larger than the sum of its proper divisors (61041204441).

99900000999 is a wasteful number, since it uses less digits than its factorization.

99900000999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882416 (or 5882410 counting only the distinct ones).

The product of its (nonzero) digits is 531441, while the sum is 54.

It can be divided in two parts, 99900000 and 999, that added together give a palindrome (99900999).

The spelling of 99900000999 in words is "ninety-nine billion, nine hundred million, nine hundred ninety-nine", and thus it is an aban number.