115571120566 has 32 divisors (see below), whose sum is σ = 198557671680. Its totient is φ = 49963821600.

The previous prime is 115571120557. The next prime is 115571120573. The reversal of 115571120566 is 665021175511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309090 + ... + 1394581.

It is an arithmetic number, because the mean of its divisors is an integer number (6204927240).

Almost surely, 2^115571120566 is an apocalyptic number.

115571120566 is a deficient number, since it is larger than the sum of its proper divisors (82986551114).

115571120566 is a wasteful number, since it uses less digits than its factorization.

115571120566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703780.

The product of its (nonzero) digits is 63000, while the sum is 40.

Subtracting 115571120566 from its reverse (665021175511), we obtain a palindrome (549450054945).

The spelling of 115571120566 in words is "one hundred fifteen billion, five hundred seventy-one million, one hundred twenty thousand, five hundred sixty-six".