116561786540 has 24 divisors (see below), whose sum is σ = 244811942592. Its totient is φ = 46618583040.

The previous prime is 116561786501. The next prime is 116561786567. The reversal of 116561786540 is 45687165611.

116561786540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225764 + ... + 533003.

It is an arithmetic number, because the mean of its divisors is an integer number (10200497608).

Almost surely, 2^116561786540 is an apocalyptic number.

116561786540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116561786540 is an abundant number, since it is smaller than the sum of its proper divisors (128250156052).

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

116561786540 is a wasteful number, since it uses less digits than its factorization.

116561786540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766457 (or 766455 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 116561786540 in words is "one hundred sixteen billion, five hundred sixty-one million, seven hundred eighty-six thousand, five hundred forty".