80208660 has 96 divisors (see below), whose sum is σ = 257870592. Its totient is φ = 18247680.

The previous prime is 80208617. The next prime is 80208691. The reversal of 80208660 is 6680208.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 147990 + ... + 148530.

It is an arithmetic number, because the mean of its divisors is an integer number (2686152).

Almost surely, 2^80208660 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 80208660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128935296).

80208660 is an abundant number, since it is smaller than the sum of its proper divisors (177661932).

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

80208660 is a wasteful number, since it uses less digits than its factorization.

80208660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 80208660 is about 8955.9287625572. The cubic root of 80208660 is about 431.2612330617.

Adding to 80208660 its reverse (6680208), we get a palindrome (86888868).

The spelling of 80208660 in words is "eighty million, two hundred eight thousand, six hundred sixty".