166452444 has 36 divisors (see below), whose sum is σ = 424929960. Its totient is φ = 54933600.

The previous prime is 166452443. The next prime is 166452463. The reversal of 166452444 is 444254661.

166452444 is a `hidden beast` number, since 1 + 6 + 645 + 2 + 4 + 4 + 4 = 666.

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

It is a super-2 number, since 2×166452444² = 55412832227146272, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 166452399 and 166452408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166452443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19254 + ... + 26525.

It is an arithmetic number, because the mean of its divisors is an integer number (11803610).

Almost surely, 2^166452444 is an apocalyptic number.

It is an amenable number.

166452444 is an abundant number, since it is smaller than the sum of its proper divisors (258477516).

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

166452444 is a wasteful number, since it uses less digits than its factorization.

166452444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45890 (or 45885 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 166452444 is about 12901.6450113929. The cubic root of 166452444 is about 550.0853245035.

The spelling of 166452444 in words is "one hundred sixty-six million, four hundred fifty-two thousand, four hundred forty-four".