115663540642 has 16 divisors (see below), whose sum is σ = 186853024512. Its totient is φ = 53379766800.

The previous prime is 115663540613. The next prime is 115663540673. The reversal of 115663540642 is 246045366511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299343 + ... + 566509.

It is an arithmetic number, because the mean of its divisors is an integer number (11678314032).

Almost surely, 2^115663540642 is an apocalyptic number.

115663540642 is a deficient number, since it is larger than the sum of its proper divisors (71189483870).

115663540642 is a wasteful number, since it uses less digits than its factorization.

115663540642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283833.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 115663540642 in words is "one hundred fifteen billion, six hundred sixty-three million, five hundred forty thousand, six hundred forty-two".