116567537778 has 128 divisors (see below), whose sum is σ = 272961964800. Its totient is φ = 36834725376.

The previous prime is 116567537747. The next prime is 116567537783. The reversal of 116567537778 is 877735765611.

116567537778 is a `hidden beast` number, since 1 + 16 + 567 + 53 + 7 + 7 + 7 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12101068 + ... + 12110696.

It is an arithmetic number, because the mean of its divisors is an integer number (2132515350).

Almost surely, 2^116567537778 is an apocalyptic number.

116567537778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 116567537778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136480982400).

116567537778 is an abundant number, since it is smaller than the sum of its proper divisors (156394427022).

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

116567537778 is a wasteful number, since it uses less digits than its factorization.

116567537778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833 (or 9827 counting only the distinct ones).

The product of its digits is 51861600, while the sum is 63.

The spelling of 116567537778 in words is "one hundred sixteen billion, five hundred sixty-seven million, five hundred thirty-seven thousand, seven hundred seventy-eight".