16228538662939 has 2 divisors, whose sum is σ = 16228538662940. Its totient is φ = 16228538662938.

The previous prime is 16228538662837. The next prime is 16228538662993. The reversal of 16228538662939 is 93926683582261.

Together with next prime (16228538662993) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16228538662939 - 2¹¹ = 16228538660891 is a prime.

It is not a weakly prime, because it can be changed into another prime (16228538662639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8114269331469 + 8114269331470.

It is an arithmetic number, because the mean of its divisors is an integer number (8114269331470).

Almost surely, 2^{16228538662939} is an apocalyptic number.

16228538662939 is a deficient number, since it is larger than the sum of its proper divisors (1).

16228538662939 is an equidigital number, since it uses as much as digits as its factorization.

16228538662939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403107840, while the sum is 70.

The spelling of 16228538662939 in words is "sixteen trillion, two hundred twenty-eight billion, five hundred thirty-eight million, six hundred sixty-two thousand, nine hundred thirty-nine".