80018560 has 32 divisors (see below), whose sum is σ = 191295900. Its totient is φ = 32007168.

The previous prime is 80018527. The next prime is 80018591. The reversal of 80018560 is 6581008.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79852096 + 166464 = 8936^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 61875 + ... + 63154.

Almost surely, 2^80018560 is an apocalyptic number.

80018560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80018560 is an abundant number, since it is smaller than the sum of its proper divisors (111277340).

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

80018560 is a wasteful number, since it uses less digits than its factorization.

80018560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125048 (or 125036 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 80018560 is about 8945.3093853706. The cubic root of 80018560 is about 430.9202573530.

Adding to 80018560 its reverse (6581008), we get a palindrome (86599568).

It can be divided in two parts, 8001 and 8560, that added together give a palindrome (16561).

The spelling of 80018560 in words is "eighty million, eighteen thousand, five hundred sixty".