16344275544 has 96 divisors (see below), whose sum is σ = 44997638400. Its totient is φ = 5358386880.

The previous prime is 16344275531. The next prime is 16344275567. The reversal of 16344275544 is 44557244361.

16344275544 is a `hidden beast` number, since 1 + 6 + 34 + 4 + 2 + 75 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 16344275544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2240527 + ... + 2247809.

It is an arithmetic number, because the mean of its divisors is an integer number (468725400).

Almost surely, 2^16344275544 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 16344275544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498819200).

16344275544 is an abundant number, since it is smaller than the sum of its proper divisors (28653362856).

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

16344275544 is a wasteful number, since it uses less digits than its factorization.

16344275544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805 (or 7798 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 45.

The spelling of 16344275544 in words is "sixteen billion, three hundred forty-four million, two hundred seventy-five thousand, five hundred forty-four".