2672812666 has 16 divisors (see below), whose sum is σ = 4153192200. Its totient is φ = 1288542528.

The previous prime is 2672812651. The next prime is 2672812687. The reversal of 2672812666 is 6662182762.

It can be written as a sum of positive squares in 4 ways, for example, as 2512916641 + 159896025 = 50129^2 + 12645^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11080 + ... + 73948.

Almost surely, 2^2672812666 is an apocalyptic number.

2672812666 is a deficient number, since it is larger than the sum of its proper divisors (1480379534).

2672812666 is a wasteful number, since it uses less digits than its factorization.

2672812666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63633.

The product of its digits is 580608, while the sum is 46.

The square root of 2672812666 is about 51699.2520835650. The cubic root of 2672812666 is about 1387.7870807755.

The spelling of 2672812666 in words is "two billion, six hundred seventy-two million, eight hundred twelve thousand, six hundred sixty-six".