165166160566055 has 48 divisors (see below), whose sum is σ = 222552473899392. Its totient is φ = 117532468838400.

The previous prime is 165166160566003. The next prime is 165166160566063. The reversal of 165166160566055 is 550665061661561.

It is a happy number.

It is not a de Polignac number, because 165166160566055 - 2¹⁴ = 165166160549671 is a prime.

It is a super-2 number, since 2×165166160566055² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165166160565985 and 165166160566003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101931815 + ... + 103539495.

It is an arithmetic number, because the mean of its divisors is an integer number (4636509872904).

Almost surely, 2^{165166160566055} is an apocalyptic number.

165166160566055 is a deficient number, since it is larger than the sum of its proper divisors (57386313333337).

165166160566055 is a wasteful number, since it uses less digits than its factorization.

165166160566055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611368 (or 1611357 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 59.

The spelling of 165166160566055 in words is "one hundred sixty-five trillion, one hundred sixty-six billion, one hundred sixty million, five hundred sixty-six thousand, fifty-five".