166823056 has 15 divisors (see below), whose sum is σ = 323319801. Its totient is φ = 83385696.

The previous prime is 166823011. The next prime is 166823077. The reversal of 166823056 is 650328661.

The square root of 166823056 is 12916.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50183056 + 116640000 = 7084^2 + 10800^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 50050 + ... + 53278.

Almost surely, 2^166823056 is an apocalyptic number.

166823056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

166823056 is the 12916-th square number.

It is an amenable number.

166823056 is a deficient number, since it is larger than the sum of its proper divisors (156496745).

166823056 is an frugal number, since it uses more digits than its factorization.

166823056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6466 (or 3231 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The cubic root of 166823056 is about 550.4932830727.

The spelling of 166823056 in words is "one hundred sixty-six million, eight hundred twenty-three thousand, fifty-six".