12543176553 has 8 divisors (see below), whose sum is σ = 17604458400. Its totient is φ = 7922006208.

The previous prime is 12543176549. The next prime is 12543176561. The reversal of 12543176553 is 35567134521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12543176553 - 2² = 12543176549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12543176533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110027808 + ... + 110027921.

It is an arithmetic number, because the mean of its divisors is an integer number (2200557300).

Almost surely, 2^12543176553 is an apocalyptic number.

It is an amenable number.

12543176553 is a deficient number, since it is larger than the sum of its proper divisors (5061281847).

12543176553 is a wasteful number, since it uses less digits than its factorization.

12543176553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220055751.

The product of its digits is 378000, while the sum is 42.

The spelling of 12543176553 in words is "twelve billion, five hundred forty-three million, one hundred seventy-six thousand, five hundred fifty-three".