16506105727 has 2 divisors, whose sum is σ = 16506105728. Its totient is φ = 16506105726.

The previous prime is 16506105691. The next prime is 16506105731. The reversal of 16506105727 is 72750160561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16506105727 - 2⁷ = 16506105599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16506105727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16506105787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253052863 + 8253052864.

It is an arithmetic number, because the mean of its divisors is an integer number (8253052864).

Almost surely, 2^16506105727 is an apocalyptic number.

16506105727 is a deficient number, since it is larger than the sum of its proper divisors (1).

16506105727 is an equidigital number, since it uses as much as digits as its factorization.

16506105727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 16506105727 in words is "sixteen billion, five hundred six million, one hundred five thousand, seven hundred twenty-seven".