20005746267164 has 48 divisors (see below), whose sum is σ = 40113242855616. Its totient is φ = 8552089728000.

The previous prime is 20005746267161. The next prime is 20005746267173. The reversal of 20005746267164 is 46176264750002.

It is a super-2 number, since 2×20005746267164² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005746267161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361210754 + ... + 361266134.

It is an arithmetic number, because the mean of its divisors is an integer number (835692559492).

Almost surely, 2^{20005746267164} is an apocalyptic number.

It is an amenable number.

20005746267164 is an abundant number, since it is smaller than the sum of its proper divisors (20107496588452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20005746267164 is a wasteful number, since it uses less digits than its factorization.

20005746267164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87966 (or 87964 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 20005746267164 in words is "twenty trillion, five billion, seven hundred forty-six million, two hundred sixty-seven thousand, one hundred sixty-four".