20596976667791 has 2 divisors, whose sum is σ = 20596976667792. Its totient is φ = 20596976667790.

The previous prime is 20596976667763. The next prime is 20596976667809. The reversal of 20596976667791 is 19776667969502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20596976667791 - 2²² = 20596972473487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20596976667731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10298488333895 + 10298488333896.

It is an arithmetic number, because the mean of its divisors is an integer number (10298488333896).

Almost surely, 2^{20596976667791} is an apocalyptic number.

20596976667791 is a deficient number, since it is larger than the sum of its proper divisors (1).

20596976667791 is an equidigital number, since it uses as much as digits as its factorization.

20596976667791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240609120, while the sum is 80.

The spelling of 20596976667791 in words is "twenty trillion, five hundred ninety-six billion, nine hundred seventy-six million, six hundred sixty-seven thousand, seven hundred ninety-one".