166060945 has 4 divisors (see below), whose sum is σ = 199273140. Its totient is φ = 132848752.

The previous prime is 166060933. The next prime is 166060991. The reversal of 166060945 is 549060661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38551681 + 127509264 = 6209^2 + 11292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166060945 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16606090 + ... + 16606099.

It is an arithmetic number, because the mean of its divisors is an integer number (49818285).

Almost surely, 2^166060945 is an apocalyptic number.

It is an amenable number.

166060945 is a deficient number, since it is larger than the sum of its proper divisors (33212195).

166060945 is an equidigital number, since it uses as much as digits as its factorization.

166060945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33212194.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 166060945 is about 12886.4636343723. The cubic root of 166060945 is about 549.6537159070.

The spelling of 166060945 in words is "one hundred sixty-six million, sixty thousand, nine hundred forty-five".