556662221717 has 8 divisors (see below), whose sum is σ = 636547084800. Its totient is φ = 476867780784.

The previous prime is 556662221699. The next prime is 556662221761. The reversal of 556662221717 is 717122266655.

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 556662221717 - 2³⁶ = 487942744981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556662221767) 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, 22592342 + ... + 22616967.

It is an arithmetic number, because the mean of its divisors is an integer number (79568385600).

Almost surely, 2^556662221717 is an apocalyptic number.

It is an amenable number.

556662221717 is a deficient number, since it is larger than the sum of its proper divisors (79884863083).

556662221717 is a wasteful number, since it uses less digits than its factorization.

556662221717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45211075.

The product of its digits is 2116800, while the sum is 50.

The spelling of 556662221717 in words is "five hundred fifty-six billion, six hundred sixty-two million, two hundred twenty-one thousand, seven hundred seventeen".