80512180 has 24 divisors (see below), whose sum is σ = 193229568. Its totient is φ = 27604128.

The previous prime is 80512171. The next prime is 80512181. The reversal of 80512180 is 8121508.

It is a super-2 number, since 2×80512180² = 12964422256704800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80512181) by changing a digit.

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, 287404 + ... + 287683.

It is an arithmetic number, because the mean of its divisors is an integer number (8051232).

Almost surely, 2^80512180 is an apocalyptic number.

It is an amenable number.

80512180 is an abundant number, since it is smaller than the sum of its proper divisors (112717388).

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

80512180 is a wasteful number, since it uses less digits than its factorization.

80512180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575103 (or 575101 counting only the distinct ones).

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

The square root of 80512180 is about 8972.8579616530. The cubic root of 80512180 is about 431.8045311961.

Adding to 80512180 its reverse (8121508), we get a palindrome (88633688).

The spelling of 80512180 in words is "eighty million, five hundred twelve thousand, one hundred eighty".