165680107 has 2 divisors, whose sum is σ = 165680108. Its totient is φ = 165680106.

The previous prime is 165680101. The next prime is 165680149. The reversal of 165680107 is 701086561.

165680107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165680107 - 2¹¹ = 165678059 is a prime.

It is not a weakly prime, because it can be changed into another prime (165680101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82840053 + 82840054.

It is an arithmetic number, because the mean of its divisors is an integer number (82840054).

Almost surely, 2^165680107 is an apocalyptic number.

165680107 is a deficient number, since it is larger than the sum of its proper divisors (1).

165680107 is an equidigital number, since it uses as much as digits as its factorization.

165680107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 165680107 is about 12871.6784841760. The cubic root of 165680107 is about 549.2332091496.

The spelling of 165680107 in words is "one hundred sixty-five million, six hundred eighty thousand, one hundred seven".