1000165166 has 192 divisors, whose sum is σ = 2233889280. Its totient is φ = 329091840.

The previous prime is 1000165141. The next prime is 1000165237. The reversal of 1000165166 is 6615610001.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9347285 + ... + 9347391.

It is an arithmetic number, because the mean of its divisors is an integer number (11634840).

Almost surely, 2^1000165166 is an apocalyptic number.

1000165166 is an abundant number, since it is smaller than the sum of its proper divisors (1233724114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000165166 is a wasteful number, since it uses less digits than its factorization.

1000165166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1000165166 is about 31625.3879976199. The cubic root of 1000165166 is about 1000.0550523025.

Adding to 1000165166 its reverse (6615610001), we get a palindrome (7615775167).

The spelling of 1000165166 in words is "one billion, one hundred sixty-five thousand, one hundred sixty-six".