16504913568 has 192 divisors, whose sum is σ = 51247728000. Its totient is φ = 4585205760.

The previous prime is 16504913561. The next prime is 16504913569. The reversal of 16504913568 is 86531940561.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16504913561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2041438 + ... + 2049506.

It is an arithmetic number, because the mean of its divisors is an integer number (266915250).

Almost surely, 2^16504913568 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 16504913568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25623864000).

16504913568 is an abundant number, since it is smaller than the sum of its proper divisors (34742814432).

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

16504913568 is a wasteful number, since it uses less digits than its factorization.

16504913568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255 (or 8247 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 16504913568 in words is "sixteen billion, five hundred four million, nine hundred thirteen thousand, five hundred sixty-eight".