555561111172 has 12 divisors (see below), whose sum is σ = 972597601360. Its totient is φ = 277676082216.

The previous prime is 555561111167. The next prime is 555561111173. The reversal of 555561111172 is 271111165555.

It is not an unprimeable number, because it can be changed into a prime (555561111173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26106378 + ... + 26127649.

Almost surely, 2^555561111172 is an apocalyptic number.

It is an amenable number.

555561111172 is a deficient number, since it is larger than the sum of its proper divisors (417036490188).

555561111172 is a wasteful number, since it uses less digits than its factorization.

555561111172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52236690 (or 52236688 counting only the distinct ones).

The product of its digits is 52500, while the sum is 40.

The spelling of 555561111172 in words is "five hundred fifty-five billion, five hundred sixty-one million, one hundred eleven thousand, one hundred seventy-two".