16226188661623 has 2 divisors, whose sum is σ = 16226188661624. Its totient is φ = 16226188661622.

The previous prime is 16226188661587. The next prime is 16226188661687. The reversal of 16226188661623 is 32616688162261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16226188661623 - 2¹³ = 16226188653431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16226788661623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8113094330811 + 8113094330812.

It is an arithmetic number, because the mean of its divisors is an integer number (8113094330812).

Almost surely, 2^{16226188661623} is an apocalyptic number.

16226188661623 is a deficient number, since it is larger than the sum of its proper divisors (1).

16226188661623 is an equidigital number, since it uses as much as digits as its factorization.

16226188661623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11943936, while the sum is 58.

The spelling of 16226188661623 in words is "sixteen trillion, two hundred twenty-six billion, one hundred eighty-eight million, six hundred sixty-one thousand, six hundred twenty-three".