166481374 has 16 divisors (see below), whose sum is σ = 269403408. Its totient is φ = 76865152.

The previous prime is 166481369. The next prime is 166481411. The reversal of 166481374 is 473184661.

It is a congruent number.

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, 44392 + ... + 47995.

It is an arithmetic number, because the mean of its divisors is an integer number (16837713).

Almost surely, 2^166481374 is an apocalyptic number.

166481374 is a deficient number, since it is larger than the sum of its proper divisors (102922034).

166481374 is a wasteful number, since it uses less digits than its factorization.

166481374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92459.

The product of its digits is 96768, while the sum is 40.

The square root of 166481374 is about 12902.7661375381. The cubic root of 166481374 is about 550.1171915565.

It can be divided in two parts, 1664 and 81374, that added together give a palindrome (83038).

The spelling of 166481374 in words is "one hundred sixty-six million, four hundred eighty-one thousand, three hundred seventy-four".