550060605665 has 4 divisors (see below), whose sum is σ = 660072726804. Its totient is φ = 440048484528.

The previous prime is 550060605659. The next prime is 550060605691. The reversal of 550060605665 is 566506060055.

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 69151643089 + 480908962576 = 262967^2 + 693476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550060605665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55006060562 + ... + 55006060571.

It is an arithmetic number, because the mean of its divisors is an integer number (165018181701).

Almost surely, 2^550060605665 is an apocalyptic number.

It is an amenable number.

550060605665 is a deficient number, since it is larger than the sum of its proper divisors (110012121139).

550060605665 is a wasteful number, since it uses less digits than its factorization.

550060605665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110012121138.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 550060605665 in words is "five hundred fifty billion, sixty million, six hundred five thousand, six hundred sixty-five".