16039562868 has 96 divisors (see below), whose sum is σ = 47568433920. Its totient is φ = 4578508800.

The previous prime is 16039562867. The next prime is 16039562873. The reversal of 16039562868 is 86826593061.

It is a happy number.

16039562868 is a `hidden beast` number, since 1 + 6 + 0 + 3 + 9 + 5 + 628 + 6 + 8 = 666.

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 (16039562867) 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, 862468 + ... + 880868.

It is an arithmetic number, because the mean of its divisors is an integer number (495504520).

Almost surely, 2^16039562868 is an apocalyptic number.

16039562868 is a gapful number since it is divisible by the number (18) 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 16039562868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23784216960).

16039562868 is an abundant number, since it is smaller than the sum of its proper divisors (31528871052).

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

16039562868 is a wasteful number, since it uses less digits than its factorization.

16039562868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19574 (or 19566 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 16039562868 in words is "sixteen billion, thirty-nine million, five hundred sixty-two thousand, eight hundred sixty-eight".