16443345854 has 32 divisors (see below), whose sum is σ = 27490065120. Its totient is φ = 7324394112.

The previous prime is 16443345851. The next prime is 16443345887. The reversal of 16443345854 is 45854334461.

It is a super-3 number, since 3×16443345854³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16443345799 and 16443345808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16443345851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3294749 + ... + 3299735.

It is an arithmetic number, because the mean of its divisors is an integer number (859064535).

Almost surely, 2^16443345854 is an apocalyptic number.

16443345854 is a deficient number, since it is larger than the sum of its proper divisors (11046719266).

16443345854 is a wasteful number, since it uses less digits than its factorization.

16443345854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404.

The product of its digits is 2764800, while the sum is 47.

The spelling of 16443345854 in words is "sixteen billion, four hundred forty-three million, three hundred forty-five thousand, eight hundred fifty-four".