80221560 has 32 divisors (see below), whose sum is σ = 240665040. Its totient is φ = 21392384.

The previous prime is 80221549. The next prime is 80221571. The reversal of 80221560 is 6512208.

It is an interprime number because it is at equal distance from previous prime (80221549) and next prime (80221571).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 80221560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334137 + ... + 334376.

Almost surely, 2^80221560 is an apocalyptic number.

It is an amenable number.

80221560 is an abundant number, since it is smaller than the sum of its proper divisors (160443480).

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

80221560 is a wasteful number, since it uses less digits than its factorization.

80221560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668527 (or 668523 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 80221560 is about 8956.6489269146. The cubic root of 80221560 is about 431.2843518110.

Adding to 80221560 its reverse (6512208), we get a palindrome (86733768).

The spelling of 80221560 in words is "eighty million, two hundred twenty-one thousand, five hundred sixty".