16545456544 has 24 divisors (see below), whose sum is σ = 32577253380. Its totient is φ = 8271868416.

The previous prime is 16545456541. The next prime is 16545456547. The reversal of 16545456544 is 44565454561.

16545456544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16545456541) and next prime (16545456547).

It can be written as a sum of positive squares in 2 ways, for example, as 16541046544 + 4410000 = 128612^2 + 2100^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16545456541) 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 3 ways as a sum of consecutive naturals, for example, 381102 + ... + 422290.

Almost surely, 2^16545456544 is an apocalyptic number.

It is an amenable number.

16545456544 is a deficient number, since it is larger than the sum of its proper divisors (16031796836).

16545456544 is a wasteful number, since it uses less digits than its factorization.

16545456544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53752 (or 53744 counting only the distinct ones).

The product of its digits is 5760000, while the sum is 49.

The spelling of 16545456544 in words is "sixteen billion, five hundred forty-five million, four hundred fifty-six thousand, five hundred forty-four".