6670105765 has 4 divisors (see below), whose sum is σ = 8004126924. Its totient is φ = 5336084608.

The previous prime is 6670105747. The next prime is 6670105789. The reversal of 6670105765 is 5675010766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5675010766 = 2 ⋅2837505383.

It can be written as a sum of positive squares in 2 ways, for example, as 1930196356 + 4739909409 = 43934^2 + 68847^2 .

It is a cyclic number.

It is not a de Polignac number, because 6670105765 - 2¹⁷ = 6669974693 is a prime.

It is a Duffinian number.

It is a congruent 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, 667010572 + ... + 667010581.

It is an arithmetic number, because the mean of its divisors is an integer number (2001031731).

Almost surely, 2^6670105765 is an apocalyptic number.

It is an amenable number.

6670105765 is a deficient number, since it is larger than the sum of its proper divisors (1334021159).

6670105765 is a wasteful number, since it uses less digits than its factorization.

6670105765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334021158.

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

The square root of 6670105765 is about 81670.7154676632. The cubic root of 6670105765 is about 1882.3956336718.

The spelling of 6670105765 in words is "six billion, six hundred seventy million, one hundred five thousand, seven hundred sixty-five".