1565648882 has 30 divisors (see below), whose sum is σ = 2744529039. Its totient is φ = 669817260.

The previous prime is 1565648869. The next prime is 1565648899. The reversal of 1565648882 is 2888465651.

It can be written as a sum of positive squares in only one way, i.e., 782824441 + 782824441 = 27979^2 + 27979^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=27979.

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 14 ways as a sum of consecutive naturals, for example, 2741657 + ... + 2742227.

Almost surely, 2^1565648882 is an apocalyptic number.

1565648882 is a deficient number, since it is larger than the sum of its proper divisors (1178880157).

1565648882 is an frugal number, since it uses more digits than its factorization.

1565648882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 580 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 53.

The square root of 1565648882 is about 39568.2812616368. The cubic root of 1565648882 is about 1161.1761955053.

The spelling of 1565648882 in words is "one billion, five hundred sixty-five million, six hundred forty-eight thousand, eight hundred eighty-two".