166160563 has 2 divisors, whose sum is σ = 166160564. Its totient is φ = 166160562.

The previous prime is 166160543. The next prime is 166160569. The reversal of 166160563 is 365061661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166160563 - 2¹⁷ = 166029491 is a prime.

It is not a weakly prime, because it can be changed into another prime (166160569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83080281 + 83080282.

It is an arithmetic number, because the mean of its divisors is an integer number (83080282).

Almost surely, 2^166160563 is an apocalyptic number.

166160563 is a deficient number, since it is larger than the sum of its proper divisors (1).

166160563 is an equidigital number, since it uses as much as digits as its factorization.

166160563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 166160563 is about 12890.3282735546. The cubic root of 166160563 is about 549.7636041943.

The spelling of 166160563 in words is "one hundred sixty-six million, one hundred sixty thousand, five hundred sixty-three".