195660755 has 4 divisors (see below), whose sum is σ = 234792912. Its totient is φ = 156528600.

The previous prime is 195660749. The next prime is 195660781. The reversal of 195660755 is 557066591.

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

It is not a de Polignac number, because 195660755 - 2⁴ = 195660739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19566071 + ... + 19566080.

It is an arithmetic number, because the mean of its divisors is an integer number (58698228).

Almost surely, 2^195660755 is an apocalyptic number.

195660755 is a deficient number, since it is larger than the sum of its proper divisors (39132157).

195660755 is an equidigital number, since it uses as much as digits as its factorization.

195660755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39132156.

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 195660755 is about 13987.8788599273. The cubic root of 195660755 is about 580.5432435020.

The spelling of 195660755 in words is "one hundred ninety-five million, six hundred sixty thousand, seven hundred fifty-five".