5165166566 has 16 divisors (see below), whose sum is σ = 8862942240. Its totient is φ = 2211550080.

The previous prime is 5165166533. The next prime is 5165166583. The reversal of 5165166566 is 6656615615.

It is a self number, because there is not a number n which added to its sum of digits gives 5165166566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159011 + ... + 188718.

It is an arithmetic number, because the mean of its divisors is an integer number (553933890).

Almost surely, 2^5165166566 is an apocalyptic number.

5165166566 is a deficient number, since it is larger than the sum of its proper divisors (3697775674).

5165166566 is a wasteful number, since it uses less digits than its factorization.

5165166566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348799.

The product of its digits is 972000, while the sum is 47.

The square root of 5165166566 is about 71869.0932598986. The cubic root of 5165166566 is about 1728.6010682901.

The spelling of 5165166566 in words is "five billion, one hundred sixty-five million, one hundred sixty-six thousand, five hundred sixty-six".