65923199999 has 4 divisors (see below), whose sum is σ = 65950866336. Its totient is φ = 65895533664.

The previous prime is 65923199983. The next prime is 65923200059. The reversal of 65923199999 is 99999132956.

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 65923199999 - 2⁴ = 65923199983 is a prime.

It is a super-3 number, since 3×65923199999³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65923199099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13829594 + ... + 13834359.

It is an arithmetic number, because the mean of its divisors is an integer number (16487716584).

Almost surely, 2^65923199999 is an apocalyptic number.

65923199999 is a deficient number, since it is larger than the sum of its proper divisors (27666337).

65923199999 is a wasteful number, since it uses less digits than its factorization.

65923199999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27666336.

The product of its digits is 95659380, while the sum is 71.

The spelling of 65923199999 in words is "sixty-five billion, nine hundred twenty-three million, one hundred ninety-nine thousand, nine hundred ninety-nine".