680202166331 has 2 divisors, whose sum is σ = 680202166332. Its totient is φ = 680202166330.

The previous prime is 680202166297. The next prime is 680202166471. The reversal of 680202166331 is 133661202086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680202166331 - 2²⁶ = 680135057467 is a prime.

It is a super-2 number, since 2×680202166331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (680202136331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340101083165 + 340101083166.

It is an arithmetic number, because the mean of its divisors is an integer number (340101083166).

Almost surely, 2^680202166331 is an apocalyptic number.

680202166331 is a deficient number, since it is larger than the sum of its proper divisors (1).

680202166331 is an equidigital number, since it uses as much as digits as its factorization.

680202166331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 680202166331 in words is "six hundred eighty billion, two hundred two million, one hundred sixty-six thousand, three hundred thirty-one".