7666105879 has 4 divisors (see below), whose sum is σ = 7666591576. Its totient is φ = 7665620184.

The previous prime is 7666105861. The next prime is 7666105901. The reversal of 7666105879 is 9785016667.

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

It is a cyclic number.

It is not a de Polignac number, because 7666105879 - 2¹³ = 7666097687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666105819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218349 + ... + 251014.

It is an arithmetic number, because the mean of its divisors is an integer number (1916647894).

Almost surely, 2^7666105879 is an apocalyptic number.

7666105879 is a deficient number, since it is larger than the sum of its proper divisors (485697).

7666105879 is a wasteful number, since it uses less digits than its factorization.

7666105879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485696.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 7666105879 is about 87556.3011952881. The cubic root of 7666105879 is about 1971.7791548268.

The spelling of 7666105879 in words is "seven billion, six hundred sixty-six million, one hundred five thousand, eight hundred seventy-nine".