68165377351 has 2 divisors, whose sum is σ = 68165377352. Its totient is φ = 68165377350.

The previous prime is 68165377349. The next prime is 68165377367. The reversal of 68165377351 is 15377356186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68165377351 - 2¹ = 68165377349 is a prime.

Together with 68165377349, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68165377391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34082688675 + 34082688676.

It is an arithmetic number, because the mean of its divisors is an integer number (34082688676).

Almost surely, 2^68165377351 is an apocalyptic number.

68165377351 is a deficient number, since it is larger than the sum of its proper divisors (1).

68165377351 is an equidigital number, since it uses as much as digits as its factorization.

68165377351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The spelling of 68165377351 in words is "sixty-eight billion, one hundred sixty-five million, three hundred seventy-seven thousand, three hundred fifty-one".