115661423242 has 8 divisors (see below), whose sum is σ = 173499832800. Its totient is φ = 57828145644.

The previous prime is 115661423239. The next prime is 115661423257. The reversal of 115661423242 is 242324166511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226142 + ... + 1317097.

It is an arithmetic number, because the mean of its divisors is an integer number (21687479100).

Almost surely, 2^115661423242 is an apocalyptic number.

115661423242 is a deficient number, since it is larger than the sum of its proper divisors (57838409558).

115661423242 is a wasteful number, since it uses less digits than its factorization.

115661423242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565980.

The product of its digits is 69120, while the sum is 37.

Adding to 115661423242 its reverse (242324166511), we get a palindrome (357985589753).

The spelling of 115661423242 in words is "one hundred fifteen billion, six hundred sixty-one million, four hundred twenty-three thousand, two hundred forty-two".