80216140 has 12 divisors (see below), whose sum is σ = 168453936. Its totient is φ = 32086448.

The previous prime is 80216137. The next prime is 80216161. The reversal of 80216140 is 4161208.

It is a super-3 number, since 3×80216140³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005384 + ... + 2005423.

It is an arithmetic number, because the mean of its divisors is an integer number (14037828).

Almost surely, 2^80216140 is an apocalyptic number.

It is an amenable number.

80216140 is an abundant number, since it is smaller than the sum of its proper divisors (88237796).

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

80216140 is a wasteful number, since it uses less digits than its factorization.

80216140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010816 (or 4010814 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 80216140 is about 8956.3463532849. The cubic root of 80216140 is about 431.2746386539.

Adding to 80216140 its reverse (4161208), we get a palindrome (84377348).

It can be divided in two parts, 8021 and 6140, that added together give a square (14161 = 119²).

The spelling of 80216140 in words is "eighty million, two hundred sixteen thousand, one hundred forty".