166053444 has 96 divisors (see below), whose sum is σ = 417263616. Its totient is φ = 51313920.

The previous prime is 166053409. The next prime is 166053469. The reversal of 166053444 is 444350661.

It is a super-2 number, since 2×166053444² = 55147492528522272, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 994249 + ... + 994415.

It is an arithmetic number, because the mean of its divisors is an integer number (4346496).

Almost surely, 2^166053444 is an apocalyptic number.

It is an amenable number.

166053444 is an abundant number, since it is smaller than the sum of its proper divisors (251210172).

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

166053444 is a wasteful number, since it uses less digits than its factorization.

166053444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 166053444 is about 12886.1725892524. The cubic root of 166053444 is about 549.6454397997.

It can be divided in two parts, 16 and 6053444, that added together give a triangular number (6053460 = T₃₄₇₉).

The spelling of 166053444 in words is "one hundred sixty-six million, fifty-three thousand, four hundred forty-four".