990403404304099 has 16 divisors (see below), whose sum is σ = 1017998309924640. Its totient is φ = 963159952518400.

The previous prime is 990403404304091. The next prime is 990403404304229.

990403404304099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 990403404304099 - 2³ = 990403404304091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990403404304091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98705452 + ... + 108275449.

It is an arithmetic number, because the mean of its divisors is an integer number (63624894370290).

Almost surely, 2^{990403404304099} is an apocalyptic number.

990403404304099 is a deficient number, since it is larger than the sum of its proper divisors (27594905620541).

990403404304099 is a wasteful number, since it uses less digits than its factorization.

990403404304099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206981750.

The product of its (nonzero) digits is 15116544, while the sum is 58.

The spelling of 990403404304099 in words is "nine hundred ninety trillion, four hundred three billion, four hundred four million, three hundred four thousand, ninety-nine".