166444052 has 6 divisors (see below), whose sum is σ = 291277098. Its totient is φ = 83222024.

The previous prime is 166444049. The next prime is 166444063. The reversal of 166444052 is 250444661.

It can be written as a sum of positive squares in only one way, i.e., 124634896 + 41809156 = 11164^2 + 6466^2 .

It is a super-3 number, since 3×166444052³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20805503 + ... + 20805510.

It is an arithmetic number, because the mean of its divisors is an integer number (48546183).

Almost surely, 2^166444052 is an apocalyptic number.

It is an amenable number.

166444052 is a deficient number, since it is larger than the sum of its proper divisors (124833046).

166444052 is a wasteful number, since it uses less digits than its factorization.

166444052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41611017 (or 41611015 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 166444052 is about 12901.3197774491. The cubic root of 166444052 is about 550.0760798337.

The spelling of 166444052 in words is "one hundred sixty-six million, four hundred forty-four thousand, fifty-two".