12555433200 has 120 divisors (see below), whose sum is σ = 41967992448. Its totient is φ = 3202538240.

The previous prime is 12555433169. The next prime is 12555433207. The reversal of 12555433200 is 233455521.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555433207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199854 + ... + 255053.

Almost surely, 2^12555433200 is an apocalyptic number.

12555433200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12555433200 is an abundant number, since it is smaller than the sum of its proper divisors (29412559248).

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

12555433200 is a wasteful number, since it uses less digits than its factorization.

12555433200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454951 (or 454940 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 12555433200 its reverse (233455521), we get a palindrome (12788888721).

The spelling of 12555433200 in words is "twelve billion, five hundred fifty-five million, four hundred thirty-three thousand, two hundred".