66195 has 12 divisors (see below), whose sum is σ = 114816. Its totient is φ = 35280.

The previous prime is 66191. The next prime is 66221. The reversal of 66195 is 59166.

66195 = T₂₀ + T₂₁ + ... + T₇₃.

It is not a de Polignac number, because 66195 - 2² = 66191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 691 + ... + 780.

It is an arithmetic number, because the mean of its divisors is an integer number (9568).

2⁶⁶¹⁹⁵ is an apocalyptic number.

66195 is a deficient number, since it is larger than the sum of its proper divisors (48621).

66195 is a wasteful number, since it uses less digits than its factorization.

66195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 1479 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 66195 is about 257.2838898960. The cubic root of 66195 is about 40.4521611645.

The spelling of 66195 in words is "sixty-six thousand, one hundred ninety-five".