115156317446 has 4 divisors (see below), whose sum is σ = 172734476172. Its totient is φ = 57578158722.

The previous prime is 115156317443. The next prime is 115156317457. The reversal of 115156317446 is 644713651511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 644713651511 = 24197 ⋅26644363.

It is a junction number, because it is equal to n+sod(n) for n = 115156317397 and 115156317406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115156317443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28789079360 + ... + 28789079363.

It is an arithmetic number, because the mean of its divisors is an integer number (43183619043).

Almost surely, 2^115156317446 is an apocalyptic number.

115156317446 is a deficient number, since it is larger than the sum of its proper divisors (57578158726).

115156317446 is an equidigital number, since it uses as much as digits as its factorization.

115156317446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57578158725.

The product of its digits is 302400, while the sum is 44.

Adding to 115156317446 its reverse (644713651511), we get a palindrome (759869968957).

The spelling of 115156317446 in words is "one hundred fifteen billion, one hundred fifty-six million, three hundred seventeen thousand, four hundred forty-six".