166545382 has 8 divisors (see below), whose sum is σ = 249984000. Its totient is φ = 83217384.

The previous prime is 166545373. The next prime is 166545383. The reversal of 166545382 is 283545661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×166545382³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166545383) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23782 + ... + 29977.

It is an arithmetic number, because the mean of its divisors is an integer number (31248000).

Almost surely, 2^166545382 is an apocalyptic number.

166545382 is a deficient number, since it is larger than the sum of its proper divisors (83438618).

166545382 is a wasteful number, since it uses less digits than its factorization.

166545382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55310.

The product of its digits is 172800, while the sum is 40.

The square root of 166545382 is about 12905.2462975334. The cubic root of 166545382 is about 550.1876847066.

The spelling of 166545382 in words is "one hundred sixty-six million, five hundred forty-five thousand, three hundred eighty-two".