164155266 has 48 divisors (see below), whose sum is σ = 393501888. Its totient is φ = 49039200.

The previous prime is 164155253. The next prime is 164155297. The reversal of 164155266 is 662551461.

164155266 is a `hidden beast` number, since 1 + 6 + 41 + 552 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 164155266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8220 + ... + 19896.

It is an arithmetic number, because the mean of its divisors is an integer number (8197956).

Almost surely, 2^164155266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164155266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196750944).

164155266 is an abundant number, since it is smaller than the sum of its proper divisors (229346622).

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

164155266 is a wasteful number, since it uses less digits than its factorization.

164155266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11767 (or 11764 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 164155266 is about 12812.3091595543. The cubic root of 164155266 is about 547.5430528476.

The spelling of 164155266 in words is "one hundred sixty-four million, one hundred fifty-five thousand, two hundred sixty-six".