16280023356 has 96 divisors (see below), whose sum is σ = 43110144000. Its totient is φ = 5311126080.

The previous prime is 16280023267. The next prime is 16280023439. The reversal of 16280023356 is 65332008261.

It is a happy number.

16280023356 is a `hidden beast` number, since 1 + 6 + 280 + 0 + 23 + 356 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16280023356.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2463745 + ... + 2470343.

It is an arithmetic number, because the mean of its divisors is an integer number (449064000).

Almost surely, 2^16280023356 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 16280023356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21555072000).

16280023356 is an abundant number, since it is smaller than the sum of its proper divisors (26830120644).

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

16280023356 is a wasteful number, since it uses less digits than its factorization.

16280023356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096 (or 7088 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 16280023356 in words is "sixteen billion, two hundred eighty million, twenty-three thousand, three hundred fifty-six".