111556634450343 has 4 divisors (see below), whose sum is σ = 148742179267128. Its totient is φ = 74371089633560.

The previous prime is 111556634450329. The next prime is 111556634450347. The reversal of 111556634450343 is 343054436655111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111556634450343 - 2¹⁶ = 111556634384807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111556634450347) 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, 18592772408388 + ... + 18592772408393.

It is an arithmetic number, because the mean of its divisors is an integer number (37185544816782).

Almost surely, 2^{111556634450343} is an apocalyptic number.

111556634450343 is a deficient number, since it is larger than the sum of its proper divisors (37185544816785).

111556634450343 is an equidigital number, since it uses as much as digits as its factorization.

111556634450343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37185544816784.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 111556634450343 in words is "one hundred eleven trillion, five hundred fifty-six billion, six hundred thirty-four million, four hundred fifty thousand, three hundred forty-three".