6663497967 has 80 divisors (see below), whose sum is σ = 11689629952. Its totient is φ = 3703553280.

The previous prime is 6663497963. The next prime is 6663497977. The reversal of 6663497967 is 7697943666.

6663497967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6663497967 - 2² = 6663497963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663497963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8215992 + ... + 8216802.

Almost surely, 2^6663497967 is an apocalyptic number.

6663497967 is a deficient number, since it is larger than the sum of its proper divisors (5026131985).

6663497967 is a wasteful number, since it uses less digits than its factorization.

6663497967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1201 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 63.

The square root of 6663497967 is about 81630.2515431626. The cubic root of 6663497967 is about 1881.7738244514.

The spelling of 6663497967 in words is "six billion, six hundred sixty-three million, four hundred ninety-seven thousand, nine hundred sixty-seven".