1099168080 has 80 divisors (see below), whose sum is σ = 3450612480. Its totient is φ = 289396224.

The previous prime is 1099168073. The next prime is 1099168097. The reversal of 1099168080 is 808619901.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10027 + ... + 47946.

It is an arithmetic number, because the mean of its divisors is an integer number (43132656).

Almost surely, 2^1099168080 is an apocalyptic number.

1099168080 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 1099168080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725306240).

1099168080 is an abundant number, since it is smaller than the sum of its proper divisors (2351444400).

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

1099168080 is a wasteful number, since it uses less digits than its factorization.

1099168080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58068 (or 58062 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 1099168080 is about 33153.7038654809. The cubic root of 1099168080 is about 1032.0198151354.

The spelling of 1099168080 in words is "one billion, ninety-nine million, one hundred sixty-eight thousand, eighty".