20500666614 has 12 divisors (see below), whose sum is σ = 44418111036. Its totient is φ = 6833555532.

The previous prime is 20500666591. The next prime is 20500666651. The reversal of 20500666614 is 41666600502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569462944 + ... + 569462979.

It is an arithmetic number, because the mean of its divisors is an integer number (3701509253).

Almost surely, 2^20500666614 is an apocalyptic number.

20500666614 is an abundant number, since it is smaller than the sum of its proper divisors (23917444422).

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

20500666614 is a wasteful number, since it uses less digits than its factorization.

20500666614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138925931 (or 1138925928 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 20500666614 in words is "twenty billion, five hundred million, six hundred sixty-six thousand, six hundred fourteen".