20371162806111 has 64 divisors (see below), whose sum is σ = 29511355596800. Its totient is φ = 12425067135360.

The previous prime is 20371162806089. The next prime is 20371162806217. The reversal of 20371162806111 is 11160826117302.

It is not a de Polignac number, because 20371162806111 - 2¹⁰ = 20371162805087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 20371162806111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20371162806011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2645945340 + ... + 2645953038.

It is an arithmetic number, because the mean of its divisors is an integer number (461114931200).

Almost surely, 2^{20371162806111} is an apocalyptic number.

20371162806111 is a deficient number, since it is larger than the sum of its proper divisors (9140192790689).

20371162806111 is a wasteful number, since it uses less digits than its factorization.

20371162806111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9236.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 20371162806111 in words is "twenty trillion, three hundred seventy-one billion, one hundred sixty-two million, eight hundred six thousand, one hundred eleven".