2669706166 has 4 divisors (see below), whose sum is σ = 4004559252. Its totient is φ = 1334853082.

The previous prime is 2669706139. The next prime is 2669706167. The reversal of 2669706166 is 6616079662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669706167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667426540 + ... + 667426543.

It is an arithmetic number, because the mean of its divisors is an integer number (1001139813).

Almost surely, 2^2669706166 is an apocalyptic number.

2669706166 is a deficient number, since it is larger than the sum of its proper divisors (1334853086).

2669706166 is a wasteful number, since it uses less digits than its factorization.

2669706166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334853085.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 2669706166 is about 51669.1993938362. The cubic root of 2669706166 is about 1387.2492164339.

The spelling of 2669706166 in words is "two billion, six hundred sixty-nine million, seven hundred six thousand, one hundred sixty-six".