16268878080 has 864 divisors, whose sum is σ = 72421372800. Its totient is φ = 3427909632.

The previous prime is 16268878061. The next prime is 16268878081. The reversal of 16268878080 is 8087886261.

16268878080 is a `hidden beast` number, since 1 + 626 + 8 + 8 + 7 + 8 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16268878081) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22014351 + ... + 22015089.

Almost surely, 2^16268878080 is an apocalyptic number.

16268878080 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 16268878080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36210686400).

16268878080 is an abundant number, since it is smaller than the sum of its proper divisors (56152494720).

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

16268878080 is a wasteful number, since it uses less digits than its factorization.

16268878080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 16268878080 in words is "sixteen billion, two hundred sixty-eight million, eight hundred seventy-eight thousand, eighty".