766164871 has 2 divisors, whose sum is σ = 766164872. Its totient is φ = 766164870.

The previous prime is 766164863. The next prime is 766164913. The reversal of 766164871 is 178461667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766164871 - 2³ = 766164863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766164851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383082435 + 383082436.

It is an arithmetic number, because the mean of its divisors is an integer number (383082436).

Almost surely, 2^766164871 is an apocalyptic number.

766164871 is a deficient number, since it is larger than the sum of its proper divisors (1).

766164871 is an equidigital number, since it uses as much as digits as its factorization.

766164871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 766164871 is about 27679.6833616283. The cubic root of 766164871 is about 915.0414031650.

The spelling of 766164871 in words is "seven hundred sixty-six million, one hundred sixty-four thousand, eight hundred seventy-one".