531056722866011 has 8 divisors (see below), whose sum is σ = 540111624554304. Its totient is φ = 522077594413960.

The previous prime is 531056722865987. The next prime is 531056722866067. The reversal of 531056722866011 is 110668227650135.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531056722866011 - 2¹⁸ = 531056722603867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531056722806011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18943294925 + ... + 18943322958.

It is an arithmetic number, because the mean of its divisors is an integer number (67513953069288).

Almost surely, 2^{531056722866011} is an apocalyptic number.

531056722866011 is a deficient number, since it is larger than the sum of its proper divisors (9054901688293).

531056722866011 is a wasteful number, since it uses less digits than its factorization.

531056722866011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37886618121.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 531056722866011 in words is "five hundred thirty-one trillion, fifty-six billion, seven hundred twenty-two million, eight hundred sixty-six thousand, eleven".