9900900090099 has 16 divisors (see below), whose sum is σ = 15064432571040. Its totient is φ = 6422205463200.

The previous prime is 9900900090073. The next prime is 9900900090113.

9900900090099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9900900090099 - 2¹⁵ = 9900900057331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9900900090899) 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 15 ways as a sum of consecutive naturals, for example, 4955404452 + ... + 4955406449.

It is an arithmetic number, because the mean of its divisors is an integer number (941527035690).

Almost surely, 2^{9900900090099} is an apocalyptic number.

9900900090099 is a deficient number, since it is larger than the sum of its proper divisors (5163532480941).

9900900090099 is a wasteful number, since it uses less digits than its factorization.

9900900090099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910810947 (or 9910810941 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, 99009000 and 90099, that added together give a palindrome (99099099).

The spelling of 9900900090099 in words is "nine trillion, nine hundred billion, nine hundred million, ninety thousand, ninety-nine".