6337318666 has 12 divisors (see below), whose sum is σ = 11057974578. Its totient is φ = 2715993672.

The previous prime is 6337318661. The next prime is 6337318681. The reversal of 6337318666 is 6668137336.

It can be written as a sum of positive squares in only one way, i.e., 3242733025 + 3094585641 = 56945^2 + 55629^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (6337318661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32333161 + ... + 32333356.

Almost surely, 2^6337318666 is an apocalyptic number.

6337318666 is a deficient number, since it is larger than the sum of its proper divisors (4720655912).

6337318666 is a wasteful number, since it uses less digits than its factorization.

6337318666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64666533 (or 64666526 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 49.

The square root of 6337318666 is about 79607.2777200678. The cubic root of 6337318666 is about 1850.5543667095.

The spelling of 6337318666 in words is "six billion, three hundred thirty-seven million, three hundred eighteen thousand, six hundred sixty-six".