13820067556 has 24 divisors (see below), whose sum is σ = 24647342720. Its totient is φ = 6779084832.

The previous prime is 13820067553. The next prime is 13820067571. The reversal of 13820067556 is 65576002831.

It is not an unprimeable number, because it can be changed into a prime (13820067553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89670 + ... + 188893.

Almost surely, 2^13820067556 is an apocalyptic number.

It is an amenable number.

13820067556 is a deficient number, since it is larger than the sum of its proper divisors (10827275164).

13820067556 is a wasteful number, since it uses less digits than its factorization.

13820067556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278803 (or 278801 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 13820067556 in words is "thirteen billion, eight hundred twenty million, sixty-seven thousand, five hundred fifty-six".