20766946565113 has 8 divisors (see below), whose sum is σ = 23733846122432. Its totient is φ = 17800095234096.

The previous prime is 20766946565047. The next prime is 20766946565161. The reversal of 20766946565113 is 31156564966702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20766946565113 - 2⁹ = 20766946564601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20766926565113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11129070 + ... + 12860407.

It is an arithmetic number, because the mean of its divisors is an integer number (2966730765304).

Almost surely, 2^{20766946565113} is an apocalyptic number.

It is an amenable number.

20766946565113 is a deficient number, since it is larger than the sum of its proper divisors (2966899557319).

20766946565113 is a wasteful number, since it uses less digits than its factorization.

20766946565113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24113151.

The product of its (nonzero) digits is 48988800, while the sum is 61.

The spelling of 20766946565113 in words is "twenty trillion, seven hundred sixty-six billion, nine hundred forty-six million, five hundred sixty-five thousand, one hundred thirteen".