990110010110101 has 16 divisors (see below), whose sum is σ = 1016906337976320. Its totient is φ = 963485293886640.

The previous prime is 990110010110093. The next prime is 990110010110147. The reversal of 990110010110101 is 101011010011099.

It is a cyclic number.

It is not a de Polignac number, because 990110010110101 - 2³ = 990110010110093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990110010117101) 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, 373427796 + ... + 376069858.

It is an arithmetic number, because the mean of its divisors is an integer number (63556646123520).

Almost surely, 2^{990110010110101} is an apocalyptic number.

It is an amenable number.

990110010110101 is a deficient number, since it is larger than the sum of its proper divisors (26796327866219).

990110010110101 is a wasteful number, since it uses less digits than its factorization.

990110010110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674536.

The product of its (nonzero) digits is 81, while the sum is 25.

The spelling of 990110010110101 in words is "nine hundred ninety trillion, one hundred ten billion, ten million, one hundred ten thousand, one hundred one".