166545355 has 8 divisors (see below), whose sum is σ = 210373200. Its totient is φ = 126223776.

The previous prime is 166545343. The next prime is 166545373. The reversal of 166545355 is 553545661.

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

It is a cyclic number.

It is not a de Polignac number, because 166545355 - 2⁹ = 166544843 is a prime.

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, 876460 + ... + 876649.

It is an arithmetic number, because the mean of its divisors is an integer number (26296650).

Almost surely, 2^166545355 is an apocalyptic number.

166545355 is a deficient number, since it is larger than the sum of its proper divisors (43827845).

166545355 is a wasteful number, since it uses less digits than its factorization.

166545355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753133.

The product of its digits is 270000, while the sum is 40.

The square root of 166545355 is about 12905.2452514472. The cubic root of 166545355 is about 550.1876549748.

The spelling of 166545355 in words is "one hundred sixty-six million, five hundred forty-five thousand, three hundred fifty-five".