13326405120 has 400 divisors, whose sum is σ = 54555624288. Its totient is φ = 3045703680.

The previous prime is 13326405109. The next prime is 13326405133. The reversal of 13326405120 is 2150462331.

13326405120 is a `hidden beast` number, since 1 + 3 + 3 + 2 + 640 + 5 + 12 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1446930 + ... + 1456110.

Almost surely, 2^13326405120 is an apocalyptic number.

13326405120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13326405120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27277812144).

13326405120 is an abundant number, since it is smaller than the sum of its proper divisors (41229219168).

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

13326405120 is an frugal number, since it uses more digits than its factorization.

13326405120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9223 (or 9198 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 13326405120 its reverse (2150462331), we get a palindrome (15476867451).

The spelling of 13326405120 in words is "thirteen billion, three hundred twenty-six million, four hundred five thousand, one hundred twenty".