13326793920 has 560 divisors, whose sum is σ = 52966729728. Its totient is φ = 3152701440.

The previous prime is 13326793897. The next prime is 13326793967. The reversal of 13326793920 is 2939762331.

It is a super-2 number, since 2×13326793920² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12259617 + ... + 12260703.

Almost surely, 2^13326793920 is an apocalyptic number.

13326793920 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 13326793920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26483364864).

13326793920 is an abundant number, since it is smaller than the sum of its proper divisors (39639935808).

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

13326793920 is a wasteful number, since it uses less digits than its factorization.

13326793920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The spelling of 13326793920 in words is "thirteen billion, three hundred twenty-six million, seven hundred ninety-three thousand, nine hundred twenty".