65965625319 has 16 divisors (see below), whose sum is σ = 97264387584. Its totient is φ = 39431505600.

The previous prime is 65965625311. The next prime is 65965625333. The reversal of 65965625319 is 91352656956.

It is not a de Polignac number, because 65965625319 - 2³ = 65965625311 is a prime.

It is a super-2 number, since 2×65965625319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65965625311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13689087 + ... + 13693904.

It is an arithmetic number, because the mean of its divisors is an integer number (6079024224).

Almost surely, 2^65965625319 is an apocalyptic number.

65965625319 is a deficient number, since it is larger than the sum of its proper divisors (31298762265).

65965625319 is a wasteful number, since it uses less digits than its factorization.

65965625319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27383078.

The product of its digits is 13122000, while the sum is 57.

The spelling of 65965625319 in words is "sixty-five billion, nine hundred sixty-five million, six hundred twenty-five thousand, three hundred nineteen".