561327265672 has 16 divisors (see below), whose sum is σ = 1052880068700. Its totient is φ = 280559247360.

The previous prime is 561327265663. The next prime is 561327265673. The reversal of 561327265672 is 276562723165.

It can be written as a sum of positive squares in 2 ways, for example, as 349997659236 + 211329606436 = 591606^2 + 459706^2 .

It is a super-3 number, since 3×561327265672³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (561327265673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13025329 + ... + 13068352.

Almost surely, 2^561327265672 is an apocalyptic number.

It is an amenable number.

561327265672 is a deficient number, since it is larger than the sum of its proper divisors (491552803028).

561327265672 is a wasteful number, since it uses less digits than its factorization.

561327265672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26096376 (or 26096372 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The spelling of 561327265672 in words is "five hundred sixty-one billion, three hundred twenty-seven million, two hundred sixty-five thousand, six hundred seventy-two".