195664330 has 8 divisors (see below), whose sum is σ = 352195812. Its totient is φ = 78265728.

The previous prime is 195664327. The next prime is 195664331. The reversal of 195664330 is 33466591.

It can be written as a sum of positive squares in 2 ways, for example, as 194686209 + 978121 = 13953^2 + 989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 195664330.

It is not an unprimeable number, because it can be changed into a prime (195664331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9783207 + ... + 9783226.

Almost surely, 2^195664330 is an apocalyptic number.

195664330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195664330 is a deficient number, since it is larger than the sum of its proper divisors (156531482).

195664330 is a wasteful number, since it uses less digits than its factorization.

195664330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19566440.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 195664330 is about 13988.0066485543. The cubic root of 195664330 is about 580.5467792637.

The spelling of 195664330 in words is "one hundred ninety-five million, six hundred sixty-four thousand, three hundred thirty".