13355394820 has 48 divisors (see below), whose sum is σ = 30987266688. Its totient is φ = 4809305600.

The previous prime is 13355394779. The next prime is 13355394883. The reversal of 13355394820 is 2849355331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846106 + ... + 861745.

It is an arithmetic number, because the mean of its divisors is an integer number (645568056).

Almost surely, 2^13355394820 is an apocalyptic number.

13355394820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13355394820 is an abundant number, since it is smaller than the sum of its proper divisors (17631871868).

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

13355394820 is a wasteful number, since it uses less digits than its factorization.

13355394820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707900 (or 1707898 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 13355394820 in words is "thirteen billion, three hundred fifty-five million, three hundred ninety-four thousand, eight hundred twenty".