65193439156 has 12 divisors (see below), whose sum is σ = 116741740192. Its totient is φ = 31838656248.

The previous prime is 65193439127. The next prime is 65193439159.

It is a happy number.

65193439156 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65193439159) 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, 189515640 + ... + 189515983.

Almost surely, 2^65193439156 is an apocalyptic number.

It is an amenable number.

65193439156 is a deficient number, since it is larger than the sum of its proper divisors (51548301036).

65193439156 is a wasteful number, since it uses less digits than its factorization.

65193439156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379031670 (or 379031668 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 52.

The spelling of 65193439156 in words is "sixty-five billion, one hundred ninety-three million, four hundred thirty-nine thousand, one hundred fifty-six".