195663764 has 6 divisors (see below), whose sum is σ = 342411594. Its totient is φ = 97831880.

The previous prime is 195663763. The next prime is 195663779. The reversal of 195663764 is 467366591.

195663764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 97851664 + 97812100 = 9892^2 + 9890^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195663763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24457967 + ... + 24457974.

It is an arithmetic number, because the mean of its divisors is an integer number (57068599).

Almost surely, 2^195663764 is an apocalyptic number.

It is an amenable number.

195663764 is a deficient number, since it is larger than the sum of its proper divisors (146747830).

195663764 is a wasteful number, since it uses less digits than its factorization.

195663764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48915945 (or 48915943 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 195663764 is about 13987.9864169222. The cubic root of 195663764 is about 580.5462194789.

The spelling of 195663764 in words is "one hundred ninety-five million, six hundred sixty-three thousand, seven hundred sixty-four".