166768465 has 4 divisors (see below), whose sum is σ = 200122164. Its totient is φ = 133414768.

The previous prime is 166768457. The next prime is 166768493. The reversal of 166768465 is 564867661.

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 109977169 + 56791296 = 10487^2 + 7536^2 .

It is a cyclic number.

It is not a de Polignac number, because 166768465 - 2³ = 166768457 is a prime.

It is a Duffinian number.

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, 16676842 + ... + 16676851.

It is an arithmetic number, because the mean of its divisors is an integer number (50030541).

Almost surely, 2^166768465 is an apocalyptic number.

It is an amenable number.

166768465 is a deficient number, since it is larger than the sum of its proper divisors (33353699).

166768465 is an equidigital number, since it uses as much as digits as its factorization.

166768465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33353698.

The product of its digits is 1451520, while the sum is 49.

The square root of 166768465 is about 12913.8865180084. The cubic root of 166768465 is about 550.4332289087.

The spelling of 166768465 in words is "one hundred sixty-six million, seven hundred sixty-eight thousand, four hundred sixty-five".