166380745 has 8 divisors (see below), whose sum is σ = 199790784. Its totient is φ = 133015344.

The previous prime is 166380707. The next prime is 166380757. The reversal of 166380745 is 547083661.

It is a happy number.

166380745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 166380745 - 2¹⁷ = 166249673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166380698 and 166380707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319 + ... + 18388.

It is an arithmetic number, because the mean of its divisors is an integer number (24973848).

Almost surely, 2^166380745 is an apocalyptic number.

It is an amenable number.

166380745 is a deficient number, since it is larger than the sum of its proper divisors (33410039).

166380745 is a wasteful number, since it uses less digits than its factorization.

166380745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22319.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 166380745 is about 12898.8660354312. The cubic root of 166380745 is about 550.0063305056.

The spelling of 166380745 in words is "one hundred sixty-six million, three hundred eighty thousand, seven hundred forty-five".