16227544320 has 576 divisors, whose sum is σ = 65313158400. Its totient is φ = 3782246400.

The previous prime is 16227544309. The next prime is 16227544343. The reversal of 16227544320 is 2344572261.

16227544320 is a `hidden beast` number, since 1 + 62 + 27 + 544 + 32 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8535370 + ... + 8537270.

It is an arithmetic number, because the mean of its divisors is an integer number (113390900).

Almost surely, 2^16227544320 is an apocalyptic number.

16227544320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16227544320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32656579200).

16227544320 is an abundant number, since it is smaller than the sum of its proper divisors (49085614080).

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

16227544320 is a wasteful number, since it uses less digits than its factorization.

16227544320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 16227544320 in words is "sixteen billion, two hundred twenty-seven million, five hundred forty-four thousand, three hundred twenty".