166555046 has 8 divisors (see below), whose sum is σ = 285522960. Its totient is φ = 71380728.

The previous prime is 166555043. The next prime is 166555057. The reversal of 166555046 is 640555661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166555043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5948381 + ... + 5948408.

It is an arithmetic number, because the mean of its divisors is an integer number (35690370).

Almost surely, 2^166555046 is an apocalyptic number.

166555046 is a deficient number, since it is larger than the sum of its proper divisors (118967914).

166555046 is a wasteful number, since it uses less digits than its factorization.

166555046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11896798.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 166555046 is about 12905.6207134721. The cubic root of 166555046 is about 550.1983262724.

The spelling of 166555046 in words is "one hundred sixty-six million, five hundred fifty-five thousand, forty-six".