166356244 has 6 divisors (see below), whose sum is σ = 291123434. Its totient is φ = 83178120.

The previous prime is 166356233. The next prime is 166356299. The reversal of 166356244 is 442653661.

166356244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163072900 + 3283344 = 12770^2 + 1812^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 20794527 + ... + 20794534.

Almost surely, 2^166356244 is an apocalyptic number.

It is an amenable number.

166356244 is a deficient number, since it is larger than the sum of its proper divisors (124767190).

166356244 is a wasteful number, since it uses less digits than its factorization.

166356244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41589065 (or 41589063 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 166356244 is about 12897.9162658160. The cubic root of 166356244 is about 549.9793314547.

The spelling of 166356244 in words is "one hundred sixty-six million, three hundred fifty-six thousand, two hundred forty-four".