1325664063 has 40 divisors (see below), whose sum is σ = 2113095600. Its totient is φ = 825327360.

The previous prime is 1325664061. The next prime is 1325664073. The reversal of 1325664063 is 3604665231.

1325664063 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 6 + 640 + 6 + 3 = 666.

It is not a de Polignac number, because 1325664063 - 2¹ = 1325664061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325664061) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 176713 + ... + 184061.

It is an arithmetic number, because the mean of its divisors is an integer number (52827390).

Almost surely, 2^1325664063 is an apocalyptic number.

1325664063 is a deficient number, since it is larger than the sum of its proper divisors (787431537).

1325664063 is a wasteful number, since it uses less digits than its factorization.

1325664063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7509 (or 7500 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1325664063 is about 36409.6699106158. The cubic root of 1325664063 is about 1098.5280761823.

The spelling of 1325664063 in words is "one billion, three hundred twenty-five million, six hundred sixty-four thousand, sixty-three".