111284956836 has 135 divisors (see below), whose sum is σ = 298536456603. Its totient is φ = 36148245840.

The previous prime is 111284956813. The next prime is 111284956837. The reversal of 111284956836 is 638659482111.

It is a happy number.

The square root of 111284956836 is 333594.

It is a perfect power (a square), and thus also a powerful number.

111284956836 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 8 + 49 + 568 + 36 = 666.

111284956836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (111284956837) 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 44 ways as a sum of consecutive naturals, for example, 258201541 + ... + 258201971.

Almost surely, 2^111284956836 is an apocalyptic number.

111284956836 is the 333594-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111284956836

111284956836 is an abundant number, since it is smaller than the sum of its proper divisors (187251499767).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111284956836 is an frugal number, since it uses more digits than its factorization.

111284956836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 479 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

It can be divided in two parts, 1112849 and 56836, that added together give a triangular number (1169685 = T₁₅₂₉).

The spelling of 111284956836 in words is "one hundred eleven billion, two hundred eighty-four million, nine hundred fifty-six thousand, eight hundred thirty-six".