165116807 has 4 divisors (see below), whose sum is σ = 170810520. Its totient is φ = 159423096.

The previous prime is 165116803. The next prime is 165116837. The reversal of 165116807 is 708611561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165116807 - 2² = 165116803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165116803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846813 + ... + 2846870.

It is an arithmetic number, because the mean of its divisors is an integer number (42702630).

Almost surely, 2^165116807 is an apocalyptic number.

165116807 is a deficient number, since it is larger than the sum of its proper divisors (5693713).

165116807 is an equidigital number, since it uses as much as digits as its factorization.

165116807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5693712.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 165116807 is about 12849.7784805809. The cubic root of 165116807 is about 548.6100517440.

The spelling of 165116807 in words is "one hundred sixty-five million, one hundred sixteen thousand, eight hundred seven".