115161105566 has 16 divisors (see below), whose sum is σ = 187871358528. Its totient is φ = 52625028000.

The previous prime is 115161105539. The next prime is 115161105571. The reversal of 115161105566 is 665501161511.

It is a happy number.

It is a congruent number.

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, 21924470 + ... + 21929721.

It is an arithmetic number, because the mean of its divisors is an integer number (11741959908).

Almost surely, 2^115161105566 is an apocalyptic number.

115161105566 is a deficient number, since it is larger than the sum of its proper divisors (72710252962).

115161105566 is a wasteful number, since it uses less digits than its factorization.

115161105566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43854307.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 115161105566 in words is "one hundred fifteen billion, one hundred sixty-one million, one hundred five thousand, five hundred sixty-six".