65193839156 has 12 divisors (see below), whose sum is σ = 115218815460. Its totient is φ = 32274177600.

The previous prime is 65193839141. The next prime is 65193839197.

It is a happy number.

65193839156 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 48232944400 + 16960894756 = 219620^2 + 130234^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80685041 + ... + 80685848.

It is an arithmetic number, because the mean of its divisors is an integer number (9601567955).

Almost surely, 2^65193839156 is an apocalyptic number.

It is an amenable number.

65193839156 is a deficient number, since it is larger than the sum of its proper divisors (50024976304).

65193839156 is a wasteful number, since it uses less digits than its factorization.

65193839156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161370994 (or 161370992 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 56.

The spelling of 65193839156 in words is "sixty-five billion, one hundred ninety-three million, eight hundred thirty-nine thousand, one hundred fifty-six".