16481560487 has 4 divisors (see below), whose sum is σ = 18836069136. Its totient is φ = 14127051840.

The previous prime is 16481560483. The next prime is 16481560499. The reversal of 16481560487 is 78406518461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78406518461 = 31 ⋅2529242531.

It is a cyclic number.

It is not a de Polignac number, because 16481560487 - 2² = 16481560483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16481560483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177254314 + ... + 1177254327.

It is an arithmetic number, because the mean of its divisors is an integer number (4709017284).

Almost surely, 2^16481560487 is an apocalyptic number.

16481560487 is a deficient number, since it is larger than the sum of its proper divisors (2354508649).

16481560487 is an equidigital number, since it uses as much as digits as its factorization.

16481560487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354508648.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 16481560487 in words is "sixteen billion, four hundred eighty-one million, five hundred sixty thousand, four hundred eighty-seven".