111478818506770 has 192 divisors, whose sum is σ = 242203076640000. Its totient is φ = 36608126929920.

The previous prime is 111478818506749. The next prime is 111478818506777. The reversal of 111478818506770 is 77605818874111.

It is not an unprimeable number, because it can be changed into a prime (111478818506777) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 343697131 + ... + 344021329.

It is an arithmetic number, because the mean of its divisors is an integer number (1261474357500).

Almost surely, 2^{111478818506770} is an apocalyptic number.

111478818506770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111478818506770 is an abundant number, since it is smaller than the sum of its proper divisors (130724258133230).

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

111478818506770 is a wasteful number, since it uses less digits than its factorization.

111478818506770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324645 (or 324632 counting only the distinct ones).

The product of its (nonzero) digits is 21073920, while the sum is 64.

The spelling of 111478818506770 in words is "one hundred eleven trillion, four hundred seventy-eight billion, eight hundred eighteen million, five hundred six thousand, seven hundred seventy".