16354240663 has 2 divisors, whose sum is σ = 16354240664. Its totient is φ = 16354240662.

The previous prime is 16354240627. The next prime is 16354240691. The reversal of 16354240663 is 36604245361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16354240663 - 2¹⁷ = 16354109591 is a prime.

It is a super-2 number, since 2×16354240663² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16354244663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8177120331 + 8177120332.

It is an arithmetic number, because the mean of its divisors is an integer number (8177120332).

Almost surely, 2^16354240663 is an apocalyptic number.

16354240663 is a deficient number, since it is larger than the sum of its proper divisors (1).

16354240663 is an equidigital number, since it uses as much as digits as its factorization.

16354240663 is an evil number, because the sum of its binary digits is even.

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

The spelling of 16354240663 in words is "sixteen billion, three hundred fifty-four million, two hundred forty thousand, six hundred sixty-three".