166668330 has 16 divisors (see below), whose sum is σ = 400004064. Its totient is φ = 44444880.

The previous prime is 166668277. The next prime is 166668331. The reversal of 166668330 is 33866661.

166668330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (166668331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2777776 + ... + 2777835.

It is an arithmetic number, because the mean of its divisors is an integer number (25000254).

Almost surely, 2^166668330 is an apocalyptic number.

166668330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166668330 is an abundant number, since it is smaller than the sum of its proper divisors (233335734).

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

166668330 is a wasteful number, since it uses less digits than its factorization.

166668330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555621.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 166668330 is about 12910.0089078203. The cubic root of 166668330 is about 550.3230388782.

It can be divided in two parts, 1666 and 68330, that added together give a palindrome (69996).

The spelling of 166668330 in words is "one hundred sixty-six million, six hundred sixty-eight thousand, three hundred thirty".