6406045663 has 2 divisors, whose sum is σ = 6406045664. Its totient is φ = 6406045662.

The previous prime is 6406045603. The next prime is 6406045669. The reversal of 6406045663 is 3665406046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6406045663 - 2¹⁷ = 6405914591 is a prime.

It is a super-2 number, since 2×6406045663² = 82074842072882219138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6406045669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203022831 + 3203022832.

It is an arithmetic number, because the mean of its divisors is an integer number (3203022832).

Almost surely, 2^6406045663 is an apocalyptic number.

6406045663 is a deficient number, since it is larger than the sum of its proper divisors (1).

6406045663 is an equidigital number, since it uses as much as digits as its factorization.

6406045663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 6406045663 is about 80037.7764746123. The cubic root of 6406045663 is about 1857.2199636650.

The spelling of 6406045663 in words is "six billion, four hundred six million, forty-five thousand, six hundred sixty-three".