13000556800 has 864 divisors, whose sum is σ = 44381159424. Its totient is φ = 3649536000.

The previous prime is 13000556717. The next prime is 13000556801. The reversal of 13000556800 is 865500031.

It is a super-2 number, since 2×13000556800² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (13000556801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 351366382 + ... + 351366418.

Almost surely, 2^13000556800 is an apocalyptic number.

13000556800 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 13000556800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22190579712).

13000556800 is an abundant number, since it is smaller than the sum of its proper divisors (31380602624).

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

13000556800 is a wasteful number, since it uses less digits than its factorization.

13000556800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 13000556800 its product of nonzero digits (3600), we get a square (13000560400 = 114020²).

The spelling of 13000556800 in words is "thirteen billion, five hundred fifty-six thousand, eight hundred".