16264281563 has 2 divisors, whose sum is σ = 16264281564. Its totient is φ = 16264281562.

The previous prime is 16264281503. The next prime is 16264281581. The reversal of 16264281563 is 36518246261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16264281563 - 2⁸ = 16264281307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16264281503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8132140781 + 8132140782.

It is an arithmetic number, because the mean of its divisors is an integer number (8132140782).

Almost surely, 2^16264281563 is an apocalyptic number.

16264281563 is a deficient number, since it is larger than the sum of its proper divisors (1).

16264281563 is an equidigital number, since it uses as much as digits as its factorization.

16264281563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The spelling of 16264281563 in words is "sixteen billion, two hundred sixty-four million, two hundred eighty-one thousand, five hundred sixty-three".