80215180 has 24 divisors (see below), whose sum is σ = 178361568. Its totient is φ = 30198528.

The previous prime is 80215153. The next prime is 80215181. The reversal of 80215180 is 8151208.

It is not an unprimeable number, because it can be changed into a prime (80215181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117624 + ... + 118303.

It is an arithmetic number, because the mean of its divisors is an integer number (7431732).

Almost surely, 2^80215180 is an apocalyptic number.

It is an amenable number.

80215180 is an abundant number, since it is smaller than the sum of its proper divisors (98146388).

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

80215180 is a wasteful number, since it uses less digits than its factorization.

80215180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235953 (or 235951 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 80215180 is about 8956.2927598421. The cubic root of 80215180 is about 431.2729181967.

Adding to 80215180 its reverse (8151208), we get a palindrome (88366388).

The spelling of 80215180 in words is "eighty million, two hundred fifteen thousand, one hundred eighty".