195660 has 36 divisors (see below), whose sum is σ = 594048. Its totient is φ = 52128.

The previous prime is 195659. The next prime is 195677. The reversal of 195660 is 66591.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364 + ... + 723.

2¹⁹⁵⁶⁶⁰ is an apocalyptic number.

195660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195660 is an abundant number, since it is smaller than the sum of its proper divisors (398388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195660 is a wasteful number, since it uses less digits than its factorization.

195660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1097 counting only the distinct ones).

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

The square root of 195660 is about 442.3347148936. The cubic root of 195660 is about 58.0542496783.

It can be divided in two parts, 1956 and 60, that added together give a triangular number (2016 = T₆₃).

The spelling of 195660 in words is "one hundred ninety-five thousand, six hundred sixty".