16145550559 has 4 divisors (see below), whose sum is σ = 16152118920. Its totient is φ = 16138982200.

The previous prime is 16145550527. The next prime is 16145550563. The reversal of 16145550559 is 95505554161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16145550559 - 2⁵ = 16145550527 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 (16145550859) 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, 3280492 + ... + 3285409.

It is an arithmetic number, because the mean of its divisors is an integer number (4038029730).

Almost surely, 2^16145550559 is an apocalyptic number.

16145550559 is a deficient number, since it is larger than the sum of its proper divisors (6568361).

16145550559 is an equidigital number, since it uses as much as digits as its factorization.

16145550559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568360.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 16145550559 in words is "sixteen billion, one hundred forty-five million, five hundred fifty thousand, five hundred fifty-nine".