166646010 has 16 divisors (see below), whose sum is σ = 399950496. Its totient is φ = 44438928.

The previous prime is 166646009. The next prime is 166646021. The reversal of 166646010 is 10646661.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5554867 = 166646010 / (1 + 6 + 6 + 6 + 4 + 6 + 0 + 1 + 0).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2777404 + ... + 2777463.

It is an arithmetic number, because the mean of its divisors is an integer number (24996906).

Almost surely, 2^166646010 is an apocalyptic number.

166646010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166646010 is an abundant number, since it is smaller than the sum of its proper divisors (233304486).

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

166646010 is a wasteful number, since it uses less digits than its factorization.

166646010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554877.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 166646010 is about 12909.1444333077. The cubic root of 166646010 is about 550.2984716062.

The spelling of 166646010 in words is "one hundred sixty-six million, six hundred forty-six thousand, ten".