766064171 has 2 divisors, whose sum is σ = 766064172. Its totient is φ = 766064170.

The previous prime is 766064153. The next prime is 766064179. The reversal of 766064171 is 171460667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 766064171 - 2²⁶ = 698955307 is a prime.

It is not a weakly prime, because it can be changed into another prime (766064179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383032085 + 383032086.

It is an arithmetic number, because the mean of its divisors is an integer number (383032086).

Almost surely, 2^766064171 is an apocalyptic number.

766064171 is a deficient number, since it is larger than the sum of its proper divisors (1).

766064171 is an equidigital number, since it uses as much as digits as its factorization.

766064171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 766064171 is about 27677.8642781556. The cubic root of 766064171 is about 915.0013122698.

The spelling of 766064171 in words is "seven hundred sixty-six million, sixty-four thousand, one hundred seventy-one".