160665451 has 2 divisors, whose sum is σ = 160665452. Its totient is φ = 160665450.

The previous prime is 160665413. The next prime is 160665457. The reversal of 160665451 is 154566061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 160665451 - 2⁹ = 160664939 is a prime.

It is not a weakly prime, because it can be changed into another prime (160665457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80332725 + 80332726.

It is an arithmetic number, because the mean of its divisors is an integer number (80332726).

Almost surely, 2^160665451 is an apocalyptic number.

160665451 is a deficient number, since it is larger than the sum of its proper divisors (1).

160665451 is an equidigital number, since it uses as much as digits as its factorization.

160665451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 160665451 is about 12675.3876074856. The cubic root of 160665451 is about 543.6351122755.

The spelling of 160665451 in words is "one hundred sixty million, six hundred sixty-five thousand, four hundred fifty-one".