12655513200 has 240 divisors, whose sum is σ = 44341554816. Its totient is φ = 3059942400.

The previous prime is 12655513187. The next prime is 12655513237. The reversal of 12655513200 is 231555621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6163374 + ... + 6165426.

Almost surely, 2^12655513200 is an apocalyptic number.

12655513200 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 12655513200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22170777408).

12655513200 is an abundant number, since it is smaller than the sum of its proper divisors (31686041616).

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

12655513200 is a wasteful number, since it uses less digits than its factorization.

12655513200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 12655513200 in words is "twelve billion, six hundred fifty-five million, five hundred thirteen thousand, two hundred".