16162736544 has 96 divisors (see below), whose sum is σ = 47344227840. Its totient is φ = 5364389376.

The previous prime is 16162736543. The next prime is 16162736563. The reversal of 16162736544 is 44563726161.

16162736544 is a `hidden beast` number, since 1 + 616 + 27 + 3 + 6 + 5 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×16162736544² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16162736544.

It is not an unprimeable number, because it can be changed into a prime (16162736543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161169 + ... + 241455.

It is an arithmetic number, because the mean of its divisors is an integer number (493169040).

Almost surely, 2^16162736544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16162736544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23672113920).

16162736544 is an abundant number, since it is smaller than the sum of its proper divisors (31181491296).

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

16162736544 is a wasteful number, since it uses less digits than its factorization.

16162736544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80539 (or 80525 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 16162736544 in words is "sixteen billion, one hundred sixty-two million, seven hundred thirty-six thousand, five hundred forty-four".