13326395820 has 48 divisors (see below), whose sum is σ = 38322398688. Its totient is φ = 3457658880.

The previous prime is 13326395801. The next prime is 13326395821. The reversal of 13326395820 is 2859362331.

It is not an unprimeable number, because it can be changed into a prime (13326395821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2999221 + ... + 3003660.

It is an arithmetic number, because the mean of its divisors is an integer number (798383306).

Almost surely, 2^13326395820 is an apocalyptic number.

13326395820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13326395820 is an abundant number, since it is smaller than the sum of its proper divisors (24996002868).

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

13326395820 is a wasteful number, since it uses less digits than its factorization.

13326395820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6002930 (or 6002928 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 13326395820 in words is "thirteen billion, three hundred twenty-six million, three hundred ninety-five thousand, eight hundred twenty".