16453663 has 2 divisors, whose sum is σ = 16453664. Its totient is φ = 16453662.

The previous prime is 16453627. The next prime is 16453667. The reversal of 16453663 is 36635461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16453663 is a prime.

It is a super-2 number, since 2×16453663² = 541446052235138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16453667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226831 + 8226832.

It is an arithmetic number, because the mean of its divisors is an integer number (8226832).

Almost surely, 2^16453663 is an apocalyptic number.

16453663 is a deficient number, since it is larger than the sum of its proper divisors (1).

16453663 is an equidigital number, since it uses as much as digits as its factorization.

16453663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 34.

The square root of 16453663 is about 4056.3115018450. The cubic root of 16453663 is about 254.3436304226.

The spelling of 16453663 in words is "sixteen million, four hundred fifty-three thousand, six hundred sixty-three".