16312663 has 2 divisors, whose sum is σ = 16312664. Its totient is φ = 16312662.

The previous prime is 16312651. The next prime is 16312679. The reversal of 16312663 is 36621361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16312663 - 2¹³ = 16304471 is a prime.

It is a super-2 number, since 2×16312663² = 532205948303138, which contains 22 as substring.

It is equal to p_1049950 and since 16312663 and 1049950 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16312633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8156331 + 8156332.

It is an arithmetic number, because the mean of its divisors is an integer number (8156332).

Almost surely, 2^16312663 is an apocalyptic number.

16312663 is a deficient number, since it is larger than the sum of its proper divisors (1).

16312663 is an equidigital number, since it uses as much as digits as its factorization.

16312663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 16312663 is about 4038.8937841939. The cubic root of 16312663 is about 253.6150108292.

The spelling of 16312663 in words is "sixteen million, three hundred twelve thousand, six hundred sixty-three".