566161166139 has 4 divisors (see below), whose sum is σ = 754881554856. Its totient is φ = 377440777424.

The previous prime is 566161166111. The next prime is 566161166159. The reversal of 566161166139 is 931661161665.

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 566161166139 - 2⁸ = 566161165883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 566161166091 and 566161166100.

It is not an unprimeable number, because it can be changed into a prime (566161166159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 94360194354 + ... + 94360194359.

It is an arithmetic number, because the mean of its divisors is an integer number (188720388714).

Almost surely, 2^566161166139 is an apocalyptic number.

566161166139 is a deficient number, since it is larger than the sum of its proper divisors (188720388717).

566161166139 is a wasteful number, since it uses less digits than its factorization.

566161166139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188720388716.

The product of its digits is 1049760, while the sum is 51.

The spelling of 566161166139 in words is "five hundred sixty-six billion, one hundred sixty-one million, one hundred sixty-six thousand, one hundred thirty-nine".