11646514543 has 2 divisors, whose sum is σ = 11646514544. Its totient is φ = 11646514542.

The previous prime is 11646514541. The next prime is 11646514549. The reversal of 11646514543 is 34541564611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11646514543 - 2¹ = 11646514541 is a prime.

Together with 11646514541, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11646514496 and 11646514505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11646514541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5823257271 + 5823257272.

It is an arithmetic number, because the mean of its divisors is an integer number (5823257272).

Almost surely, 2^11646514543 is an apocalyptic number.

11646514543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11646514543 is an equidigital number, since it uses as much as digits as its factorization.

11646514543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The spelling of 11646514543 in words is "eleven billion, six hundred forty-six million, five hundred fourteen thousand, five hundred forty-three".