111178344453 has 12 divisors (see below), whose sum is σ = 162939061824. Its totient is φ = 67380814600.

The previous prime is 111178344451. The next prime is 111178344463. The reversal of 111178344453 is 354443871111.

It is a happy number.

It is not a de Polignac number, because 111178344453 - 2¹ = 111178344451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111178344451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153137853 + ... + 153138578.

It is an arithmetic number, because the mean of its divisors is an integer number (13578255152).

Almost surely, 2^111178344453 is an apocalyptic number.

It is an amenable number.

111178344453 is a deficient number, since it is larger than the sum of its proper divisors (51760717371).

111178344453 is a wasteful number, since it uses less digits than its factorization.

111178344453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306276456 (or 306276445 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The spelling of 111178344453 in words is "one hundred eleven billion, one hundred seventy-eight million, three hundred forty-four thousand, four hundred fifty-three".