556612611545 has 8 divisors (see below), whose sum is σ = 669827303496. Its totient is φ = 444028642816.

The previous prime is 556612611517. The next prime is 556612611547. The reversal of 556612611545 is 545116216655.

It can be written as a sum of positive squares in 4 ways, for example, as 27978918361 + 528633693184 = 167269^2 + 727072^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556612611545 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 556612611545.

It is not an unprimeable number, because it can be changed into a prime (556612611547) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 157678862 + ... + 157682391.

It is an arithmetic number, because the mean of its divisors is an integer number (83728412937).

Almost surely, 2^556612611545 is an apocalyptic number.

It is an amenable number.

556612611545 is a deficient number, since it is larger than the sum of its proper divisors (113214691951).

556612611545 is a wasteful number, since it uses less digits than its factorization.

556612611545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315361611.

The product of its digits is 1080000, while the sum is 47.

The spelling of 556612611545 in words is "five hundred fifty-six billion, six hundred twelve million, six hundred eleven thousand, five hundred forty-five".