195880668 has 24 divisors (see below), whose sum is σ = 457321872. Its totient is φ = 65255424.

The previous prime is 195880637. The next prime is 195880669. The reversal of 195880668 is 866088591.

It is a super-2 number, since 2×195880668² = 76738472192252448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195880668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195880669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23196 + ... + 30492.

It is an arithmetic number, because the mean of its divisors is an integer number (19055078).

Almost surely, 2^195880668 is an apocalyptic number.

It is an amenable number.

195880668 is an abundant number, since it is smaller than the sum of its proper divisors (261441204).

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

195880668 is a wasteful number, since it uses less digits than its factorization.

195880668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541 (or 9539 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 195880668 is about 13995.7374939658. The cubic root of 195880668 is about 580.7606626857.

The spelling of 195880668 in words is "one hundred ninety-five million, eight hundred eighty thousand, six hundred sixty-eight".