450631630504666 has 16 divisors (see below), whose sum is σ = 727950286834344. Its totient is φ = 207981862689024.

The previous prime is 450631630504661. The next prime is 450631630504673. The reversal of 450631630504666 is 666405036136054.

It can be written as a sum of positive squares in 4 ways, for example, as 320706170209441 + 129925460295225 = 17908271^2 + 11398485^2 .

It is a super-2 number, since 2×450631630504666² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (450631630504661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79144795 + ... + 84647278.

Almost surely, 2^{450631630504666} is an apocalyptic number.

450631630504666 is a deficient number, since it is larger than the sum of its proper divisors (277318656329678).

450631630504666 is a wasteful number, since it uses less digits than its factorization.

450631630504666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163897905.

The product of its (nonzero) digits is 27993600, while the sum is 55.

The spelling of 450631630504666 in words is "four hundred fifty trillion, six hundred thirty-one billion, six hundred thirty million, five hundred four thousand, six hundred sixty-six".