451604664321604 has 48 divisors (see below), whose sum is σ = 838185675425280. Its totient is φ = 212167297520640.

The previous prime is 451604664321589. The next prime is 451604664321667. The reversal of 451604664321604 is 406123466406154.

It is a super-2 number, since 2×451604664321604² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173165349 + ... + 175753939.

It is an arithmetic number, because the mean of its divisors is an integer number (17462201571360).

Almost surely, 2^{451604664321604} is an apocalyptic number.

It is an amenable number.

451604664321604 is a deficient number, since it is larger than the sum of its proper divisors (386581011103676).

451604664321604 is a wasteful number, since it uses less digits than its factorization.

451604664321604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592868 (or 2592866 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 451604664321604 in words is "four hundred fifty-one trillion, six hundred four billion, six hundred sixty-four million, three hundred twenty-one thousand, six hundred four".