6666806674 has 32 divisors (see below), whose sum is σ = 11036596032. Its totient is φ = 2995200000.

The previous prime is 6666806669. The next prime is 6666806689. The reversal of 6666806674 is 4766086666.

It is a super-2 number, since 2×6666806674² = 88892622456981884552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736174 + ... + 745174.

It is an arithmetic number, because the mean of its divisors is an integer number (344893626).

Almost surely, 2^6666806674 is an apocalyptic number.

6666806674 is a deficient number, since it is larger than the sum of its proper divisors (4369789358).

6666806674 is a wasteful number, since it uses less digits than its factorization.

6666806674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9402.

The product of its (nonzero) digits is 10450944, while the sum is 55.

The square root of 6666806674 is about 81650.5154545885. The cubic root of 6666806674 is about 1882.0852328643.

The spelling of 6666806674 in words is "six billion, six hundred sixty-six million, eight hundred six thousand, six hundred seventy-four".