189990011111101 has 16 divisors (see below), whose sum is σ = 192348085805568. Its totient is φ = 187633592132400.

The previous prime is 189990011110987. The next prime is 189990011111161. The reversal of 189990011111101 is 101111110099981.

It is a cyclic number.

It is not a de Polignac number, because 189990011111101 - 2²¹ = 189990009013949 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 (189990011111161) 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, 3182009290 + ... + 3182068996.

It is an arithmetic number, because the mean of its divisors is an integer number (12021755362848).

Almost surely, 2^{189990011111101} is an apocalyptic number.

It is an amenable number.

189990011111101 is a deficient number, since it is larger than the sum of its proper divisors (2358074694467).

189990011111101 is an equidigital number, since it uses as much as digits as its factorization.

189990011111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72912.

The product of its (nonzero) digits is 5832, while the sum is 43.

The spelling of 189990011111101 in words is "one hundred eighty-nine trillion, nine hundred ninety billion, eleven million, one hundred eleven thousand, one hundred one".