552553121665 has 4 divisors (see below), whose sum is σ = 663063746004. Its totient is φ = 442042497328.

The previous prime is 552553121663. The next prime is 552553121711. The reversal of 552553121665 is 566121355255.

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 377722097281 + 174831024384 = 614591^2 + 418128^2 .

It is a cyclic number.

It is not a de Polignac number, because 552553121665 - 2¹ = 552553121663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552553121663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55255312162 + ... + 55255312171.

It is an arithmetic number, because the mean of its divisors is an integer number (165765936501).

Almost surely, 2^552553121665 is an apocalyptic number.

It is an amenable number.

552553121665 is a deficient number, since it is larger than the sum of its proper divisors (110510624339).

552553121665 is a wasteful number, since it uses less digits than its factorization.

552553121665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110510624338.

The product of its digits is 1350000, while the sum is 46.

The spelling of 552553121665 in words is "five hundred fifty-two billion, five hundred fifty-three million, one hundred twenty-one thousand, six hundred sixty-five".