166160593 has 4 divisors (see below), whose sum is σ = 166727988. Its totient is φ = 165593200.

The previous prime is 166160591. The next prime is 166160609. The reversal of 166160593 is 395061661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 395061661 = 19 ⋅20792719.

It can be written as a sum of positive squares in 2 ways, for example, as 133818624 + 32341969 = 11568^2 + 5687^2 .

It is a cyclic number.

It is not a de Polignac number, because 166160593 - 2¹ = 166160591 is a prime.

It is a super-2 number, since 2×166160593² = 55218685332223298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166160591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283258 + ... + 283843.

It is an arithmetic number, because the mean of its divisors is an integer number (41681997).

Almost surely, 2^166160593 is an apocalyptic number.

It is an amenable number.

166160593 is a deficient number, since it is larger than the sum of its proper divisors (567395).

166160593 is an equidigital number, since it uses as much as digits as its factorization.

166160593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567394.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 166160593 is about 12890.3294372177. The cubic root of 166160593 is about 549.7636372806.

It can be divided in two parts, 166160 and 593, that added together give a triangular number (166753 = T₅₇₇).

The spelling of 166160593 in words is "one hundred sixty-six million, one hundred sixty thousand, five hundred ninety-three".