166481426 has 32 divisors (see below), whose sum is σ = 264494592. Its totient is φ = 78494400.

The previous prime is 166481417. The next prime is 166481449. The reversal of 166481426 is 624184661.

166481426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166481426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525020 + ... + 525336.

It is an arithmetic number, because the mean of its divisors is an integer number (8265456).

Almost surely, 2^166481426 is an apocalyptic number.

166481426 is a deficient number, since it is larger than the sum of its proper divisors (98013166).

166481426 is a wasteful number, since it uses less digits than its factorization.

166481426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554.

The product of its digits is 55296, while the sum is 38.

The square root of 166481426 is about 12902.7681526097. The cubic root of 166481426 is about 550.1172488324.

The spelling of 166481426 in words is "one hundred sixty-six million, four hundred eighty-one thousand, four hundred twenty-six".