558166661855 has 16 divisors (see below), whose sum is σ = 730758163104. Its totient is φ = 405902023680.

The previous prime is 558166661831. The next prime is 558166661863.

558166661855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 558166661855 - 2²⁴ = 558149884639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143027 + ... + 1066203.

It is an arithmetic number, because the mean of its divisors is an integer number (45672385194).

Almost surely, 2^558166661855 is an apocalyptic number.

558166661855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

558166661855 is a deficient number, since it is larger than the sum of its proper divisors (172591501249).

558166661855 is a wasteful number, since it uses less digits than its factorization.

558166661855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934186.

The product of its digits is 51840000, while the sum is 62.

The spelling of 558166661855 in words is "five hundred fifty-eight billion, one hundred sixty-six million, six hundred sixty-one thousand, eight hundred fifty-five".