990000000099 has 48 divisors (see below), whose sum is σ = 1575946820448. Its totient is φ = 593870400000.

The previous prime is 990000000089. The next prime is 990000000137.

990000000099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 990000000099 - 2⁸ = 989999999843 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (990000000019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35392479 + ... + 35420439.

It is an arithmetic number, because the mean of its divisors is an integer number (32832225426).

Almost surely, 2^990000000099 is an apocalyptic number.

990000000099 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

990000000099 is a deficient number, since it is larger than the sum of its proper divisors (585946820349).

990000000099 is a wasteful number, since it uses less digits than its factorization.

990000000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31620 (or 31617 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 36.

It can be divided in two parts, 9900000000 and 99, that multiplied together give a square (980100000000 = 990000²).

The spelling of 990000000099 in words is "nine hundred ninety billion, ninety-nine", and thus it is an aban number.