8781166080 has 240 divisors, whose sum is σ = 30661323264. Its totient is φ = 2322432000.

The previous prime is 8781166033. The next prime is 8781166091. The reversal of 8781166080 is 806611878.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 2924580 + ... + 2927580.

Almost surely, 2^8781166080 is an apocalyptic number.

8781166080 is a gapful number since it is divisible by the number (80) 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 8781166080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15330661632).

8781166080 is an abundant number, since it is smaller than the sum of its proper divisors (21880157184).

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

8781166080 is a wasteful number, since it uses less digits than its factorization.

8781166080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157 (or 3138 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 8781166080 is about 93707.8762964992. The cubic root of 8781166080 is about 2063.0863091261.

The spelling of 8781166080 in words is "eight billion, seven hundred eighty-one million, one hundred sixty-six thousand, eighty".