2566672066 has 8 divisors (see below), whose sum is σ = 4400009280. Its totient is φ = 1100002308.

The previous prime is 2566672061. The next prime is 2566672079. The reversal of 2566672066 is 6602766652.

It is a happy number.

2566672066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2566672061) 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, 91666846 + ... + 91666873.

It is an arithmetic number, because the mean of its divisors is an integer number (550001160).

Almost surely, 2^2566672066 is an apocalyptic number.

2566672066 is a deficient number, since it is larger than the sum of its proper divisors (1833337214).

2566672066 is a wasteful number, since it uses less digits than its factorization.

2566672066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183333728.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The square root of 2566672066 is about 50662.3337993820. Note that the first 3 decimals coincide. The cubic root of 2566672066 is about 1369.1681714009.

The spelling of 2566672066 in words is "two billion, five hundred sixty-six million, six hundred seventy-two thousand, sixty-six".