451046431660 has 96 divisors (see below), whose sum is σ = 1087145224704. Its totient is φ = 156885502400.

The previous prime is 451046431603. The next prime is 451046431673. The reversal of 451046431660 is 66134640154.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243915 + ... + 980605.

It is an arithmetic number, because the mean of its divisors is an integer number (11324429424).

Almost surely, 2^451046431660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451046431660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543572612352).

451046431660 is an abundant number, since it is smaller than the sum of its proper divisors (636098793044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451046431660 is a wasteful number, since it uses less digits than its factorization.

451046431660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736756 (or 736732 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 451046431660 in words is "four hundred fifty-one billion, forty-six million, four hundred thirty-one thousand, six hundred sixty".