660160511 has 2 divisors, whose sum is σ = 660160512. Its totient is φ = 660160510.

The previous prime is 660160489. The next prime is 660160537. The reversal of 660160511 is 115061066.

It is an a-pointer prime, because the next prime (660160537) can be obtained adding 660160511 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660160511 is a prime.

It is a super-2 number, since 2×660160511² = 871623800567562242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660160591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330080255 + 330080256.

It is an arithmetic number, because the mean of its divisors is an integer number (330080256).

Almost surely, 2^660160511 is an apocalyptic number.

660160511 is a deficient number, since it is larger than the sum of its proper divisors (1).

660160511 is an equidigital number, since it uses as much as digits as its factorization.

660160511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 660160511 is about 25693.5889085196. The cubic root of 660160511 is about 870.7293443609.

The spelling of 660160511 in words is "six hundred sixty million, one hundred sixty thousand, five hundred eleven".