16248481561 has 16 divisors (see below), whose sum is σ = 18538498944. Its totient is φ = 14108085504.

The previous prime is 16248481553. The next prime is 16248481597. The reversal of 16248481561 is 16518484261.

16248481561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16248481561 - 2³ = 16248481553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16248481861) 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 15 ways as a sum of consecutive naturals, for example, 374356 + ... + 415498.

It is an arithmetic number, because the mean of its divisors is an integer number (1158656184).

Almost surely, 2^16248481561 is an apocalyptic number.

It is an amenable number.

16248481561 is a deficient number, since it is larger than the sum of its proper divisors (2290017383).

16248481561 is a wasteful number, since it uses less digits than its factorization.

16248481561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42960.

The product of its digits is 368640, while the sum is 46.

The spelling of 16248481561 in words is "sixteen billion, two hundred forty-eight million, four hundred eighty-one thousand, five hundred sixty-one".