111553654555166 has 8 divisors (see below), whose sum is σ = 167340395413920. Its totient is φ = 55773522750528.

The previous prime is 111553654555139. The next prime is 111553654555171. The reversal of 111553654555166 is 661555456355111.

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

It is a super-2 number, since 2×111553654555166² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652221331 + ... + 1652288846.

It is an arithmetic number, because the mean of its divisors is an integer number (20917549426740).

Almost surely, 2^{111553654555166} is an apocalyptic number.

111553654555166 is a deficient number, since it is larger than the sum of its proper divisors (55786740858754).

111553654555166 is a wasteful number, since it uses less digits than its factorization.

111553654555166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304527058.

The product of its digits is 40500000, while the sum is 59.

The spelling of 111553654555166 in words is "one hundred eleven trillion, five hundred fifty-three billion, six hundred fifty-four million, five hundred fifty-five thousand, one hundred sixty-six".