16860013443 has 144 divisors (see below), whose sum is σ = 31871251776. Its totient is φ = 8504455680.

The previous prime is 16860013441. The next prime is 16860013459. The reversal of 16860013443 is 34431006861.

It is a happy number.

16860013443 is a `hidden beast` number, since 1 + 6 + 8 + 600 + 1 + 3 + 4 + 43 = 666.

It is not a de Polignac number, because 16860013443 - 2¹ = 16860013441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16860013398 and 16860013407.

It is not an unprimeable number, because it can be changed into a prime (16860013441) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12938730 + ... + 12940032.

Almost surely, 2^16860013443 is an apocalyptic number.

16860013443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16860013443 is a deficient number, since it is larger than the sum of its proper divisors (15011238333).

16860013443 is a wasteful number, since it uses less digits than its factorization.

16860013443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 16860013443 in words is "sixteen billion, eight hundred sixty million, thirteen thousand, four hundred forty-three".