556666364143 has 4 divisors (see below), whose sum is σ = 575861756040. Its totient is φ = 537470972248.

The previous prime is 556666364141. The next prime is 556666364173. The reversal of 556666364143 is 341463666655.

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

It is a cyclic number.

It is not a de Polignac number, because 556666364143 - 2¹ = 556666364141 is a prime.

It is a super-2 number, since 2×556666364143² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556666364141) 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, 9597695905 + ... + 9597695962.

It is an arithmetic number, because the mean of its divisors is an integer number (143965439010).

Almost surely, 2^556666364143 is an apocalyptic number.

556666364143 is a deficient number, since it is larger than the sum of its proper divisors (19195391897).

556666364143 is a wasteful number, since it uses less digits than its factorization.

556666364143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19195391896.

The product of its digits is 27993600, while the sum is 55.

The spelling of 556666364143 in words is "five hundred fifty-six billion, six hundred sixty-six million, three hundred sixty-four thousand, one hundred forty-three".