6694866506 has 16 divisors (see below), whose sum is σ = 10334774880. Its totient is φ = 3250311120.

The previous prime is 6694866443. The next prime is 6694866517. The reversal of 6694866506 is 6056684966.

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, 55796 + ... + 128463.

It is an arithmetic number, because the mean of its divisors is an integer number (645923430).

Almost surely, 2^6694866506 is an apocalyptic number.

6694866506 is a deficient number, since it is larger than the sum of its proper divisors (3639908374).

6694866506 is a wasteful number, since it uses less digits than its factorization.

6694866506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184789.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The square root of 6694866506 is about 81822.1639044092. The cubic root of 6694866506 is about 1884.7220313076.

The spelling of 6694866506 in words is "six billion, six hundred ninety-four million, eight hundred sixty-six thousand, five hundred six".