16323652878 has 64 divisors (see below), whose sum is σ = 36587073600. Its totient is φ = 4849353600.

The previous prime is 16323652817. The next prime is 16323652879. The reversal of 16323652878 is 87825632361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16323652878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16323652879) 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, 360928 + ... + 403628.

It is an arithmetic number, because the mean of its divisors is an integer number (571673025).

Almost surely, 2^16323652878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16323652878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18293536800).

16323652878 is an abundant number, since it is smaller than the sum of its proper divisors (20263420722).

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

16323652878 is a wasteful number, since it uses less digits than its factorization.

16323652878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42774 (or 42748 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 16323652878 in words is "sixteen billion, three hundred twenty-three million, six hundred fifty-two thousand, eight hundred seventy-eight".