6662063997 has 16 divisors (see below), whose sum is σ = 10017036480. Its totient is φ = 4375085616.

The previous prime is 6662063983. The next prime is 6662064043. The reversal of 6662063997 is 7993602666.

It is a happy number.

It is not a de Polignac number, because 6662063997 - 2⁴ = 6662063981 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662065997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839558 + ... + 1843175.

It is an arithmetic number, because the mean of its divisors is an integer number (626064780).

Almost surely, 2^6662063997 is an apocalyptic number.

6662063997 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6662063997 is a deficient number, since it is larger than the sum of its proper divisors (3354972483).

6662063997 is a wasteful number, since it uses less digits than its factorization.

6662063997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682809 (or 3682803 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The square root of 6662063997 is about 81621.4677459307. The cubic root of 6662063997 is about 1881.6388302481.

The spelling of 6662063997 in words is "six billion, six hundred sixty-two million, sixty-three thousand, nine hundred ninety-seven".