16144864128 has 48 divisors (see below), whose sum is σ = 46458531600. Its totient is φ = 5381620992.

The previous prime is 16144864121. The next prime is 16144864189. The reversal of 16144864128 is 82146844161.

16144864128 is a `hidden beast` number, since 1 + 614 + 4 + 8 + 6 + 4 + 1 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16144864121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7006168 + ... + 7008471.

It is an arithmetic number, because the mean of its divisors is an integer number (967886075).

Almost surely, 2^16144864128 is an apocalyptic number.

16144864128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16144864128 is an abundant number, since it is smaller than the sum of its proper divisors (30313667472).

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

16144864128 is a wasteful number, since it uses less digits than its factorization.

16144864128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014659 (or 14014644 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The spelling of 16144864128 in words is "sixteen billion, one hundred forty-four million, eight hundred sixty-four thousand, one hundred twenty-eight".