20636164175 has 12 divisors (see below), whose sum is σ = 27915102456. Its totient is φ = 15008119200.

The previous prime is 20636164169. The next prime is 20636164231. The reversal of 20636164175 is 57146163602.

It is not a de Polignac number, because 20636164175 - 2¹⁸ = 20635902031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37520024 + ... + 37520573.

It is an arithmetic number, because the mean of its divisors is an integer number (2326258538).

Almost surely, 2^20636164175 is an apocalyptic number.

20636164175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20636164175 is a deficient number, since it is larger than the sum of its proper divisors (7278938281).

20636164175 is a wasteful number, since it uses less digits than its factorization.

20636164175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75040618 (or 75040613 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 20636164175 in words is "twenty billion, six hundred thirty-six million, one hundred sixty-four thousand, one hundred seventy-five".