16427699543 has 2 divisors, whose sum is σ = 16427699544. Its totient is φ = 16427699542.

The previous prime is 16427699527. The next prime is 16427699549. The reversal of 16427699543 is 34599672461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16427699543 - 2⁴ = 16427699527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16427699549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213849771 + 8213849772.

It is an arithmetic number, because the mean of its divisors is an integer number (8213849772).

Almost surely, 2^16427699543 is an apocalyptic number.

16427699543 is a deficient number, since it is larger than the sum of its proper divisors (1).

16427699543 is an equidigital number, since it uses as much as digits as its factorization.

16427699543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 56.

The spelling of 16427699543 in words is "sixteen billion, four hundred twenty-seven million, six hundred ninety-nine thousand, five hundred forty-three".