1664336484 has 30 divisors (see below), whose sum is σ = 4350905174. Its totient is φ = 554778720.

The previous prime is 1664336467. The next prime is 1664336491. The reversal of 1664336484 is 4846334661.

It is a happy number.

1664336484 is a `hidden beast` number, since 166 + 4 + 3 + 3 + 6 + 484 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1654862400 + 9474084 = 40680^2 + 3078^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2568097 + ... + 2568744.

Almost surely, 2^1664336484 is an apocalyptic number.

It is an amenable number.

1664336484 is an abundant number, since it is smaller than the sum of its proper divisors (2686568690).

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

1664336484 is a wasteful number, since it uses less digits than its factorization.

1664336484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136857 (or 5136846 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 1664336484 is about 40796.2802716130. The cubic root of 1664336484 is about 1185.0782963809.

The spelling of 1664336484 in words is "one billion, six hundred sixty-four million, three hundred thirty-six thousand, four hundred eighty-four".