65675017399 has 4 divisors (see below), whose sum is σ = 65706548536. Its totient is φ = 65643486264.

The previous prime is 65675017379. The next prime is 65675017403. The reversal of 65675017399 is 99371057656.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65675017399 - 2⁹ = 65675016887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65675017319) 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, 15762444 + ... + 15766609.

It is an arithmetic number, because the mean of its divisors is an integer number (16426637134).

Almost surely, 2^65675017399 is an apocalyptic number.

65675017399 is a deficient number, since it is larger than the sum of its proper divisors (31531137).

65675017399 is a wasteful number, since it uses less digits than its factorization.

65675017399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31531136.

The product of its (nonzero) digits is 10716300, while the sum is 58.

The spelling of 65675017399 in words is "sixty-five billion, six hundred seventy-five million, seventeen thousand, three hundred ninety-nine".