20045264472111 has 4 divisors (see below), whose sum is σ = 26727019296152. Its totient is φ = 13363509648072.

The previous prime is 20045264472089. The next prime is 20045264472133. The reversal of 20045264472111 is 11127446254002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20045264472089) and next prime (20045264472133).

It is not a de Polignac number, because 20045264472111 - 2³¹ = 20043116988463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20045264472111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045264474111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340877412016 + ... + 3340877412021.

It is an arithmetic number, because the mean of its divisors is an integer number (6681754824038).

Almost surely, 2^{20045264472111} is an apocalyptic number.

20045264472111 is a deficient number, since it is larger than the sum of its proper divisors (6681754824041).

20045264472111 is an equidigital number, since it uses as much as digits as its factorization.

20045264472111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681754824040.

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 20045264472111 in words is "twenty trillion, forty-five billion, two hundred sixty-four million, four hundred seventy-two thousand, one hundred eleven".