111318644279808 has 400 divisors, whose sum is σ = 379762734504384. Its totient is φ = 31801923993600.

The previous prime is 111318644279771. The next prime is 111318644279833. The reversal of 111318644279808 is 808972446813111.

111318644279808 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 186 + 442 + 7 + 9 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4180654591 + ... + 4180681217.

Almost surely, 2^{111318644279808} is an apocalyptic number.

111318644279808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111318644279808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189881367252192).

111318644279808 is an abundant number, since it is smaller than the sum of its proper divisors (268444090224576).

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

111318644279808 is an equidigital number, since it uses as much as digits as its factorization.

111318644279808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41065 (or 41040 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 111318644279808 in words is "one hundred eleven trillion, three hundred eighteen billion, six hundred forty-four million, two hundred seventy-nine thousand, eight hundred eight".