166734345 has 8 divisors (see below), whose sum is σ = 266774976. Its totient is φ = 88924976.

The previous prime is 166734313. The next prime is 166734353. The reversal of 166734345 is 543437661.

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 166734345 - 2⁵ = 166734313 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5557797 + ... + 5557826.

It is an arithmetic number, because the mean of its divisors is an integer number (33346872).

Almost surely, 2^166734345 is an apocalyptic number.

166734345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166734345 is a deficient number, since it is larger than the sum of its proper divisors (100040631).

166734345 is a wasteful number, since it uses less digits than its factorization.

166734345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115631.

The product of its digits is 181440, while the sum is 39.

The square root of 166734345 is about 12912.5653918964. The cubic root of 166734345 is about 550.3956877130.

The spelling of 166734345 in words is "one hundred sixty-six million, seven hundred thirty-four thousand, three hundred forty-five".