20368501701671 has 32 divisors (see below), whose sum is σ = 21027024083520. Its totient is φ = 19718280806400.

The previous prime is 20368501701649. The next prime is 20368501701673. The reversal of 20368501701671 is 17610710586302.

It is a cyclic number.

It is not a de Polignac number, because 20368501701671 - 2⁶ = 20368501701607 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 (20368501701673) 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 31 ways as a sum of consecutive naturals, for example, 7463722235 + ... + 7463724963.

It is an arithmetic number, because the mean of its divisors is an integer number (657094502610).

Almost surely, 2^{20368501701671} is an apocalyptic number.

20368501701671 is a deficient number, since it is larger than the sum of its proper divisors (658522381849).

20368501701671 is a wasteful number, since it uses less digits than its factorization.

20368501701671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 20368501701671 in words is "twenty trillion, three hundred sixty-eight billion, five hundred one million, seven hundred one thousand, six hundred seventy-one".