80221580 has 24 divisors (see below), whose sum is σ = 168648480. Its totient is φ = 32053760.

The previous prime is 80221571. The next prime is 80221597. The reversal of 80221580 is 8512208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24860 + ... + 27900.

It is an arithmetic number, because the mean of its divisors is an integer number (7027020).

Almost surely, 2^80221580 is an apocalyptic number.

It is an amenable number.

80221580 is an abundant number, since it is smaller than the sum of its proper divisors (88426900).

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

80221580 is a wasteful number, since it uses less digits than its factorization.

80221580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369 (or 4367 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 80221580 is about 8956.6500434035. The cubic root of 80221580 is about 431.2843876520.

Adding to 80221580 its reverse (8512208), we get a palindrome (88733788).

The spelling of 80221580 in words is "eighty million, two hundred twenty-one thousand, five hundred eighty".