16868242456 has 16 divisors (see below), whose sum is σ = 34060874400. Its totient is φ = 7785342624.

The previous prime is 16868242441. The next prime is 16868242463. The reversal of 16868242456 is 65424286861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

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 3 ways as a sum of consecutive naturals, for example, 81097216 + ... + 81097423.

It is an arithmetic number, because the mean of its divisors is an integer number (2128804650).

Almost surely, 2^16868242456 is an apocalyptic number.

It is an amenable number.

16868242456 is an abundant number, since it is smaller than the sum of its proper divisors (17192631944).

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

16868242456 is a wasteful number, since it uses less digits than its factorization.

16868242456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162194658 (or 162194654 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 52.

The spelling of 16868242456 in words is "sixteen billion, eight hundred sixty-eight million, two hundred forty-two thousand, four hundred fifty-six".