20117702766134 has 16 divisors (see below), whose sum is σ = 30992433718608. Its totient is φ = 9786896737632.

The previous prime is 20117702766131. The next prime is 20117702766167. The reversal of 20117702766134 is 43166720771102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20117702766131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6809789 + ... + 9306375.

It is an arithmetic number, because the mean of its divisors is an integer number (1937027107413).

Almost surely, 2^{20117702766134} is an apocalyptic number.

20117702766134 is a deficient number, since it is larger than the sum of its proper divisors (10874730952474).

20117702766134 is a wasteful number, since it uses less digits than its factorization.

20117702766134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605519.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 20117702766134 in words is "twenty trillion, one hundred seventeen billion, seven hundred two million, seven hundred sixty-six thousand, one hundred thirty-four".