766148249554433 has 2 divisors, whose sum is σ = 766148249554434. Its totient is φ = 766148249554432.

The previous prime is 766148249554393. The next prime is 766148249554451. The reversal of 766148249554433 is 334455942841667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497990823541264 + 268157426013169 = 22315708^2 + 16375513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766148249554433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (766148249556433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383074124777216 + 383074124777217.

It is an arithmetic number, because the mean of its divisors is an integer number (383074124777217).

Almost surely, 2^{766148249554433} is an apocalyptic number.

It is an amenable number.

766148249554433 is a deficient number, since it is larger than the sum of its proper divisors (1).

766148249554433 is an equidigital number, since it uses as much as digits as its factorization.

766148249554433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2090188800, while the sum is 71.

The spelling of 766148249554433 in words is "seven hundred sixty-six trillion, one hundred forty-eight billion, two hundred forty-nine million, five hundred fifty-four thousand, four hundred thirty-three".