165667927 has 2 divisors, whose sum is σ = 165667928. Its totient is φ = 165667926.

The previous prime is 165667913. The next prime is 165667951. The reversal of 165667927 is 729766561.

It is a weak prime.

It is an emirp because it is prime and its reverse (729766561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165667927 - 2¹¹ = 165665879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165667967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82833963 + 82833964.

It is an arithmetic number, because the mean of its divisors is an integer number (82833964).

Almost surely, 2^165667927 is an apocalyptic number.

165667927 is a deficient number, since it is larger than the sum of its proper divisors (1).

165667927 is an equidigital number, since it uses as much as digits as its factorization.

165667927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 165667927 is about 12871.2053437120. The cubic root of 165667927 is about 549.2197498303.

The spelling of 165667927 in words is "one hundred sixty-five million, six hundred sixty-seven thousand, nine hundred twenty-seven".