13332256820 has 24 divisors (see below), whose sum is σ = 29215033344. Its totient is φ = 5101037216.

The previous prime is 13332256799. The next prime is 13332256853. The reversal of 13332256820 is 2865223331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14491124 + ... + 14492043.

It is an arithmetic number, because the mean of its divisors is an integer number (1217293056).

Almost surely, 2^13332256820 is an apocalyptic number.

13332256820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13332256820 is an abundant number, since it is smaller than the sum of its proper divisors (15882776524).

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

13332256820 is a wasteful number, since it uses less digits than its factorization.

13332256820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28983199 (or 28983197 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 13332256820 in words is "thirteen billion, three hundred thirty-two million, two hundred fifty-six thousand, eight hundred twenty".