195662208 has 128 divisors (see below), whose sum is σ = 601816320. Its totient is φ = 55166976.

The previous prime is 195662191. The next prime is 195662213. The reversal of 195662208 is 802266591.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222666 + ... + 223542.

It is an arithmetic number, because the mean of its divisors is an integer number (4701690).

Almost surely, 2^195662208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195662208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300908160).

195662208 is an abundant number, since it is smaller than the sum of its proper divisors (406154112).

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

195662208 is an equidigital number, since it uses as much as digits as its factorization.

195662208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 195662208 is about 13987.9307976555. The cubic root of 195662208 is about 580.5446805594.

The spelling of 195662208 in words is "one hundred ninety-five million, six hundred sixty-two thousand, two hundred eight".