20655020015167 has 4 divisors (see below), whose sum is σ = 21094488526176. Its totient is φ = 20215551504160.

The previous prime is 20655020015143. The next prime is 20655020015213. The reversal of 20655020015167 is 76151002055602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20655020015167 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 (20655020015117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219734255434 + ... + 219734255527.

It is an arithmetic number, because the mean of its divisors is an integer number (5273622131544).

Almost surely, 2^{20655020015167} is an apocalyptic number.

20655020015167 is a deficient number, since it is larger than the sum of its proper divisors (439468511009).

20655020015167 is an equidigital number, since it uses as much as digits as its factorization.

20655020015167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439468511008.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 20655020015167 in words is "twenty trillion, six hundred fifty-five billion, twenty million, fifteen thousand, one hundred sixty-seven".