2766661206 has 16 divisors (see below), whose sum is σ = 5534307264. Its totient is φ = 922056264.

The previous prime is 2766661147. The next prime is 2766661207. The reversal of 2766661206 is 6021666672.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2766661207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600 + ... + 74403.

It is an arithmetic number, because the mean of its divisors is an integer number (345894204).

Almost surely, 2^2766661206 is an apocalyptic number.

2766661206 is an abundant number, since it is smaller than the sum of its proper divisors (2767646058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2766661206 is a wasteful number, since it uses less digits than its factorization.

2766661206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82075.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 2766661206 is about 52599.0608851527. The cubic root of 2766661206 is about 1403.8433857903.

The spelling of 2766661206 in words is "two billion, seven hundred sixty-six million, six hundred sixty-one thousand, two hundred six".