766422155 has 4 divisors (see below), whose sum is σ = 919706592. Its totient is φ = 613137720.

The previous prime is 766422149. The next prime is 766422191. The reversal of 766422155 is 551224667.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 766422155 - 2⁸ = 766421899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76642211 + ... + 76642220.

It is an arithmetic number, because the mean of its divisors is an integer number (229926648).

Almost surely, 2^766422155 is an apocalyptic number.

766422155 is a deficient number, since it is larger than the sum of its proper divisors (153284437).

766422155 is a wasteful number, since it uses less digits than its factorization.

766422155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153284436.

The product of its digits is 100800, while the sum is 38.

The square root of 766422155 is about 27684.3304957877. The cubic root of 766422155 is about 915.1438176598.

The spelling of 766422155 in words is "seven hundred sixty-six million, four hundred twenty-two thousand, one hundred fifty-five".