17980544560 has 40 divisors (see below), whose sum is σ = 45605201616. Its totient is φ = 6538379520.

The previous prime is 17980544551. The next prime is 17980544563. The reversal of 17980544560 is 6544508971.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (17980544563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10215339 + ... + 10217098.

Almost surely, 2^17980544560 is an apocalyptic number.

17980544560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17980544560 is an abundant number, since it is smaller than the sum of its proper divisors (27624657056).

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

17980544560 is a wasteful number, since it uses less digits than its factorization.

17980544560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20432461 (or 20432455 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 17980544560 in words is "seventeen billion, nine hundred eighty million, five hundred forty-four thousand, five hundred sixty".