660111651167 has 2 divisors, whose sum is σ = 660111651168. Its totient is φ = 660111651166.

The previous prime is 660111651137. The next prime is 660111651229. The reversal of 660111651167 is 761156111066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660111651167 - 2⁶ = 660111651103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660111651107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330055825583 + 330055825584.

It is an arithmetic number, because the mean of its divisors is an integer number (330055825584).

Almost surely, 2^660111651167 is an apocalyptic number.

660111651167 is a deficient number, since it is larger than the sum of its proper divisors (1).

660111651167 is an equidigital number, since it uses as much as digits as its factorization.

660111651167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

The spelling of 660111651167 in words is "six hundred sixty billion, one hundred eleven million, six hundred fifty-one thousand, one hundred sixty-seven".