6997646056 has 8 divisors (see below), whose sum is σ = 13120586370. Its totient is φ = 3498823024.

The previous prime is 6997646041. The next prime is 6997646099. The reversal of 6997646056 is 6506467996.

It can be written as a sum of positive squares in only one way, i.e., 6000981156 + 996664900 = 77466^2 + 31570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437352871 + ... + 437352886.

Almost surely, 2^6997646056 is an apocalyptic number.

It is an amenable number.

6997646056 is a deficient number, since it is larger than the sum of its proper divisors (6122940314).

6997646056 is a wasteful number, since it uses less digits than its factorization.

6997646056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874705763 (or 874705759 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 58.

The square root of 6997646056 is about 83651.9339644936. The cubic root of 6997646056 is about 1912.7167333572.

The spelling of 6997646056 in words is "six billion, nine hundred ninety-seven million, six hundred forty-six thousand, fifty-six".