12554120000 has 70 divisors (see below), whose sum is σ = 31130236698. Its totient is φ = 5021632000.

The previous prime is 12554119937. The next prime is 12554120023. The reversal of 12554120000 is 2145521.

It can be written as a sum of positive squares in 5 ways, for example, as 9029560576 + 3524559424 = 95024^2 + 59368^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 116927 + ... + 196926.

Almost surely, 2^12554120000 is an apocalyptic number.

12554120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12554120000 is an abundant number, since it is smaller than the sum of its proper divisors (18576116698).

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

12554120000 is an frugal number, since it uses more digits than its factorization.

12554120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313885 (or 313860 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 12554120000 its reverse (2145521), we get a palindrome (12556265521).

It can be divided in two parts, 125541 and 20000, that added together give a palindrome (145541).

The spelling of 12554120000 in words is "twelve billion, five hundred fifty-four million, one hundred twenty thousand".