168591680711 has 2 divisors, whose sum is σ = 168591680712. Its totient is φ = 168591680710.

The previous prime is 168591680689. The next prime is 168591680729. The reversal of 168591680711 is 117086195861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168591680711 - 2¹⁴ = 168591664327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168591680731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84295840355 + 84295840356.

It is an arithmetic number, because the mean of its divisors is an integer number (84295840356).

Almost surely, 2^168591680711 is an apocalyptic number.

168591680711 is a deficient number, since it is larger than the sum of its proper divisors (1).

168591680711 is an equidigital number, since it uses as much as digits as its factorization.

168591680711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 168591680711 in words is "one hundred sixty-eight billion, five hundred ninety-one million, six hundred eighty thousand, seven hundred eleven".