13281166080 has 1152 divisors, whose sum is σ = 59997450240. Its totient is φ = 2707292160.

The previous prime is 13281166009. The next prime is 13281166099. The reversal of 13281166080 is 8066118231.

13281166080 is a `hidden beast` number, since 1 + 32 + 8 + 1 + 16 + 608 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 128943309 + ... + 128943411.

It is an arithmetic number, because the mean of its divisors is an integer number (52081120).

Almost surely, 2^13281166080 is an apocalyptic number.

13281166080 is a gapful number since it is divisible by the number (10) 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 13281166080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29998725120).

13281166080 is an abundant number, since it is smaller than the sum of its proper divisors (46716284160).

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

13281166080 is a wasteful number, since it uses less digits than its factorization.

13281166080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

It can be divided in two parts, 132811 and 66080, that added together give a palindrome (198891).

The spelling of 13281166080 in words is "thirteen billion, two hundred eighty-one million, one hundred sixty-six thousand, eighty".