1965663395 has 8 divisors (see below), whose sum is σ = 2359038480. Its totient is φ = 1572369120.

The previous prime is 1965663389. The next prime is 1965663397. The reversal of 1965663395 is 5933665691.

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

It is not a de Polignac number, because 1965663395 - 2⁶ = 1965663331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1965663397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69665 + ... + 93725.

It is an arithmetic number, because the mean of its divisors is an integer number (294879810).

Almost surely, 2^1965663395 is an apocalyptic number.

1965663395 is a deficient number, since it is larger than the sum of its proper divisors (393375085).

1965663395 is a wasteful number, since it uses less digits than its factorization.

1965663395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40405.

The product of its digits is 3936600, while the sum is 53.

The square root of 1965663395 is about 44335.8026317332. The cubic root of 1965663395 is about 1252.6691540366.

The spelling of 1965663395 in words is "one billion, nine hundred sixty-five million, six hundred sixty-three thousand, three hundred ninety-five".