166166244 has 36 divisors (see below), whose sum is σ = 428972544. Its totient is φ = 54209712.

The previous prime is 166166227. The next prime is 166166261. The reversal of 166166244 is 442661661.

166166244 is a `hidden beast` number, since 16 + 6 + 16 + 624 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (166166227) and next prime (166166261).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×166166244² = 55222441290135072, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 166166199 and 166166208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47412 + ... + 50795.

It is an arithmetic number, because the mean of its divisors is an integer number (11915904).

Almost surely, 2^166166244 is an apocalyptic number.

It is an amenable number.

166166244 is an abundant number, since it is smaller than the sum of its proper divisors (262806300).

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

166166244 is a wasteful number, since it uses less digits than its factorization.

166166244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98264 (or 98259 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 166166244 is about 12890.5486306829. The cubic root of 166166244 is about 549.7698695627.

It can be divided in two parts, 166166 and 244, that multiplied together give a palindrome (40544504).

The spelling of 166166244 in words is "one hundred sixty-six million, one hundred sixty-six thousand, two hundred forty-four".