166016268 has 72 divisors (see below), whose sum is σ = 463409856. Its totient is φ = 49692000.

The previous prime is 166016261. The next prime is 166016273. The reversal of 166016268 is 862610661.

It is a super-2 number, since 2×166016268² = 55122802481295648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (166016261) by changing a digit.

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, 30343 + ... + 35393.

It is an arithmetic number, because the mean of its divisors is an integer number (6436248).

Almost surely, 2^166016268 is an apocalyptic number.

166016268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166016268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231704928).

166016268 is an abundant number, since it is smaller than the sum of its proper divisors (297393588).

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

166016268 is a wasteful number, since it uses less digits than its factorization.

166016268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155 (or 5150 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 166016268 is about 12884.7300320961. The cubic root of 166016268 is about 549.6044185810.

The spelling of 166016268 in words is "one hundred sixty-six million, sixteen thousand, two hundred sixty-eight".