166481546 has 32 divisors (see below), whose sum is σ = 311980032. Its totient is φ = 64730160.

The previous prime is 166481543. The next prime is 166481593. The reversal of 166481546 is 645184661.

166481546 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166481546² = 55432210317100232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166481543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111215 + ... + 112701.

It is an arithmetic number, because the mean of its divisors is an integer number (9749376).

Almost surely, 2^166481546 is an apocalyptic number.

166481546 is a deficient number, since it is larger than the sum of its proper divisors (145498486).

166481546 is a wasteful number, since it uses less digits than its factorization.

166481546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234.

The product of its digits is 138240, while the sum is 41.

The square root of 166481546 is about 12902.7728027738. The cubic root of 166481546 is about 550.1173810074.

The spelling of 166481546 in words is "one hundred sixty-six million, four hundred eighty-one thousand, five hundred forty-six".