111343621016 has 16 divisors (see below), whose sum is σ = 208773096000. Its totient is φ = 55670795424.

The previous prime is 111343621009. The next prime is 111343621019. The reversal of 111343621016 is 610126343111.

It is a self number, because there is not a number n which added to its sum of digits gives 111343621016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111343621019) 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 3 ways as a sum of consecutive naturals, for example, 554585 + ... + 728183.

It is an arithmetic number, because the mean of its divisors is an integer number (13048318500).

Almost surely, 2^111343621016 is an apocalyptic number.

It is an amenable number.

111343621016 is a deficient number, since it is larger than the sum of its proper divisors (97429474984).

111343621016 is a wasteful number, since it uses less digits than its factorization.

111343621016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253778 (or 253774 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 111343621016 its reverse (610126343111), we get a palindrome (721469964127).

The spelling of 111343621016 in words is "one hundred eleven billion, three hundred forty-three million, six hundred twenty-one thousand, sixteen".