13155720000 has 280 divisors, whose sum is σ = 44686520736. Its totient is φ = 3412224000.

The previous prime is 13155719999. The next prime is 13155720007. The reversal of 13155720000 is 2755131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155720007) 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 39 ways as a sum of consecutive naturals, for example, 4438519 + ... + 4441481.

Almost surely, 2^13155720000 is an apocalyptic number.

13155720000 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 13155720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22343260368).

13155720000 is an abundant number, since it is smaller than the sum of its proper divisors (31530800736).

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

13155720000 is an equidigital number, since it uses as much as digits as its factorization.

13155720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035 (or 3010 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The spelling of 13155720000 in words is "thirteen billion, one hundred fifty-five million, seven hundred twenty thousand".