111604044542 has 4 divisors (see below), whose sum is σ = 167406066816. Its totient is φ = 55802022270.

The previous prime is 111604044509. The next prime is 111604044551. The reversal of 111604044542 is 245440406111.

111604044542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245440406111 = 719 ⋅341363569.

It is a junction number, because it is equal to n+sod(n) for n = 111604044499 and 111604044508.

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 as a sum of consecutive naturals, namely, 27901011134 + ... + 27901011137.

It is an arithmetic number, because the mean of its divisors is an integer number (41851516704).

Almost surely, 2^111604044542 is an apocalyptic number.

111604044542 is a deficient number, since it is larger than the sum of its proper divisors (55802022274).

111604044542 is an equidigital number, since it uses as much as digits as its factorization.

111604044542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55802022273.

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 111604044542 in words is "one hundred eleven billion, six hundred four million, forty-four thousand, five hundred forty-two".