12554364543 has 16 divisors (see below), whose sum is σ = 19133619456. Its totient is φ = 7172737920.

The previous prime is 12554364521. The next prime is 12554364733. The reversal of 12554364543 is 34546345521.

It is not a de Polignac number, because 12554364543 - 2⁶ = 12554364479 is a prime.

It is a super-2 number, since 2×12554364543² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12554364495 and 12554364504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554364443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89980 + ... + 182222.

It is an arithmetic number, because the mean of its divisors is an integer number (1195851216).

Almost surely, 2^12554364543 is an apocalyptic number.

12554364543 is a deficient number, since it is larger than the sum of its proper divisors (6579254913).

12554364543 is an equidigital number, since it uses as much as digits as its factorization.

12554364543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98734.

The product of its digits is 864000, while the sum is 42.

The spelling of 12554364543 in words is "twelve billion, five hundred fifty-four million, three hundred sixty-four thousand, five hundred forty-three".