766765105 has 4 divisors (see below), whose sum is σ = 920118132. Its totient is φ = 613412080.

The previous prime is 766765061. The next prime is 766765117. The reversal of 766765105 is 501567667.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112275216 + 654489889 = 10596^2 + 25583^2 .

It is not a de Polignac number, because 766765105 - 2²⁹ = 229894193 is a prime.

It is a super-2 number, since 2×766765105² = 1175857452491322050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76676506 + ... + 76676515.

It is an arithmetic number, because the mean of its divisors is an integer number (230029533).

Almost surely, 2^766765105 is an apocalyptic number.

It is an amenable number.

766765105 is a deficient number, since it is larger than the sum of its proper divisors (153353027).

766765105 is a wasteful number, since it uses less digits than its factorization.

766765105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153353026.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 766765105 is about 27690.5237400812. The cubic root of 766765105 is about 915.2802967397.

The spelling of 766765105 in words is "seven hundred sixty-six million, seven hundred sixty-five thousand, one hundred five".