12554717112 has 48 divisors (see below), whose sum is σ = 38859840240. Its totient is φ = 3587061888.

The previous prime is 12554717111. The next prime is 12554717117. The reversal of 12554717112 is 21171745521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554717111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12454573 + ... + 12455580.

It is an arithmetic number, because the mean of its divisors is an integer number (809580005).

Almost surely, 2^12554717112 is an apocalyptic number.

12554717112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12554717112 is an abundant number, since it is smaller than the sum of its proper divisors (26305123128).

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

12554717112 is a wasteful number, since it uses less digits than its factorization.

12554717112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24910172 (or 24910165 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The spelling of 12554717112 in words is "twelve billion, five hundred fifty-four million, seven hundred seventeen thousand, one hundred twelve".