195582660 has 192 divisors, whose sum is σ = 682117632. Its totient is φ = 40771584.

The previous prime is 195582643. The next prime is 195582661. The reversal of 195582660 is 66285591.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (195582661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 616822 + ... + 617138.

It is an arithmetic number, because the mean of its divisors is an integer number (3552696).

Almost surely, 2^195582660 is an apocalyptic number.

195582660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195582660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341058816).

195582660 is an abundant number, since it is smaller than the sum of its proper divisors (486534972).

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

195582660 is a wasteful number, since it uses less digits than its factorization.

195582660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 195582660 is about 13985.0870572907. The cubic root of 195582660 is about 580.4659949025.

The spelling of 195582660 in words is "one hundred ninety-five million, five hundred eighty-two thousand, six hundred sixty".