166404470 has 32 divisors (see below), whose sum is σ = 318578400. Its totient is φ = 62401536.

The previous prime is 166404463. The next prime is 166404481. The reversal of 166404470 is 74404661.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13916 + ... + 22944.

It is an arithmetic number, because the mean of its divisors is an integer number (9955575).

Almost surely, 2^166404470 is an apocalyptic number.

166404470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166404470 is a deficient number, since it is larger than the sum of its proper divisors (152173930).

166404470 is a wasteful number, since it uses less digits than its factorization.

166404470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 166404470 is about 12899.7856571340. The cubic root of 166404470 is about 550.0324719120.

The spelling of 166404470 in words is "one hundred sixty-six million, four hundred four thousand, four hundred seventy".