165798195 has 16 divisors (see below), whose sum is σ = 280882080. Its totient is φ = 83224064.

The previous prime is 165798181. The next prime is 165798197. The reversal of 165798195 is 591897561.

165798195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 165798195 - 2⁵ = 165798163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (165798197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324840 + ... + 325349.

It is an arithmetic number, because the mean of its divisors is an integer number (17555130).

Almost surely, 2^165798195 is an apocalyptic number.

165798195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165798195 is a deficient number, since it is larger than the sum of its proper divisors (115083885).

165798195 is a wasteful number, since it uses less digits than its factorization.

165798195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650214.

The product of its digits is 680400, while the sum is 51.

The square root of 165798195 is about 12876.2647922447. The cubic root of 165798195 is about 549.3636662685.

The spelling of 165798195 in words is "one hundred sixty-five million, seven hundred ninety-eight thousand, one hundred ninety-five".