12554820320 has 96 divisors (see below), whose sum is σ = 34362595008. Its totient is φ = 4245516288.

The previous prime is 12554820287. The next prime is 12554820329. The reversal of 12554820320 is 2302845521.

12554820320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554820329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4982 + ... + 158538.

It is an arithmetic number, because the mean of its divisors is an integer number (357943698).

Almost surely, 2^12554820320 is an apocalyptic number.

12554820320 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 12554820320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17181297504).

12554820320 is an abundant number, since it is smaller than the sum of its proper divisors (21807774688).

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

12554820320 is a wasteful number, since it uses less digits than its factorization.

12554820320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153652 (or 153644 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 12554820320 in words is "twelve billion, five hundred fifty-four million, eight hundred twenty thousand, three hundred twenty".