195645855 has 16 divisors (see below), whose sum is σ = 314611200. Its totient is φ = 103818528.

The previous prime is 195645851. The next prime is 195645859. The reversal of 195645855 is 558546591.

It is an interprime number because it is at equal distance from previous prime (195645851) and next prime (195645859).

It is not a de Polignac number, because 195645855 - 2² = 195645851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195645851) 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, 29787 + ... + 35756.

It is an arithmetic number, because the mean of its divisors is an integer number (19663200).

Almost surely, 2^195645855 is an apocalyptic number.

195645855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195645855 is a deficient number, since it is larger than the sum of its proper divisors (118965345).

195645855 is a wasteful number, since it uses less digits than its factorization.

195645855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65750.

The product of its digits is 1080000, while the sum is 48.

The square root of 195645855 is about 13987.3462458037. The cubic root of 195645855 is about 580.5285065765.

The spelling of 195645855 in words is "one hundred ninety-five million, six hundred forty-five thousand, eight hundred fifty-five".