16544333748 has 12 divisors (see below), whose sum is σ = 38603445440. Its totient is φ = 5514777912.

The previous prime is 16544333737. The next prime is 16544333749. The reversal of 16544333748 is 84733344561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 16544333697 and 16544333706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16544333749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689347228 + ... + 689347251.

Almost surely, 2^16544333748 is an apocalyptic number.

It is an amenable number.

16544333748 is an abundant number, since it is smaller than the sum of its proper divisors (22059111692).

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

16544333748 is a wasteful number, since it uses less digits than its factorization.

16544333748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378694486 (or 1378694484 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 48.

The spelling of 16544333748 in words is "sixteen billion, five hundred forty-four million, three hundred thirty-three thousand, seven hundred forty-eight".