1078186566864 has 120 divisors (see below), whose sum is σ = 3062929334976. Its totient is φ = 326575462400.

The previous prime is 1078186566839. The next prime is 1078186566911. The reversal of 1078186566864 is 4686656818701.

1078186566864 is digitally balanced in base 2, 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 (66).

It is a junction number, because it is equal to n+sod(n) for n = 1078186566795 and 1078186566804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13160749 + ... + 13242419.

Almost surely, 2^{1078186566864} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078186566864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531464667488).

1078186566864 is an abundant number, since it is smaller than the sum of its proper divisors (1984742768112).

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

1078186566864 is a wasteful number, since it uses less digits than its factorization.

1078186566864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83977 (or 83960 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 66.

The spelling of 1078186566864 in words is "one trillion, seventy-eight billion, one hundred eighty-six million, five hundred sixty-six thousand, eight hundred sixty-four".