195664466680 has 48 divisors (see below), whose sum is σ = 446358903480. Its totient is φ = 77193568512.

The previous prime is 195664466633. The next prime is 195664466707. The reversal of 195664466680 is 86664466591.

It is a happy number.

195664466680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245802 + ... + 672121.

Almost surely, 2^195664466680 is an apocalyptic number.

195664466680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195664466680 is an abundant number, since it is smaller than the sum of its proper divisors (250694436800).

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

195664466680 is an equidigital number, since it uses as much as digits as its factorization.

195664466680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918080 (or 918003 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 61.

The spelling of 195664466680 in words is "one hundred ninety-five billion, six hundred sixty-four million, four hundred sixty-six thousand, six hundred eighty".