450665661599 has 2 divisors, whose sum is σ = 450665661600. Its totient is φ = 450665661598.

The previous prime is 450665661587. The next prime is 450665661601. The reversal of 450665661599 is 995166566054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450665661599 - 2⁸ = 450665661343 is a prime.

Together with 450665661601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450665661529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225332830799 + 225332830800.

It is an arithmetic number, because the mean of its divisors is an integer number (225332830800).

Almost surely, 2^450665661599 is an apocalyptic number.

450665661599 is a deficient number, since it is larger than the sum of its proper divisors (1).

450665661599 is an equidigital number, since it uses as much as digits as its factorization.

450665661599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488000, while the sum is 62.

The spelling of 450665661599 in words is "four hundred fifty billion, six hundred sixty-five million, six hundred sixty-one thousand, five hundred ninety-nine".