56016115009 has 4 divisors (see below), whose sum is σ = 56234076804. Its totient is φ = 55798153216.

The previous prime is 56016114997. The next prime is 56016115019. The reversal of 56016115009 is 90051161065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35214399025 + 20801715984 = 187655^2 + 144228^2 .

It is a cyclic number.

It is not a de Polignac number, because 56016115009 - 2⁵ = 56016114977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56016115019) 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, 108980512 + ... + 108981025.

It is an arithmetic number, because the mean of its divisors is an integer number (14058519201).

Almost surely, 2^56016115009 is an apocalyptic number.

It is an amenable number.

56016115009 is a deficient number, since it is larger than the sum of its proper divisors (217961795).

56016115009 is a wasteful number, since it uses less digits than its factorization.

56016115009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217961794.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 56016115009 in words is "fifty-six billion, sixteen million, one hundred fifteen thousand, nine".