16809522707 has 2 divisors, whose sum is σ = 16809522708. Its totient is φ = 16809522706.

The previous prime is 16809522679. The next prime is 16809522721. The reversal of 16809522707 is 70722590861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16809522707 - 2⁶ = 16809522643 is a prime.

It is not a weakly prime, because it can be changed into another prime (16809522757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8404761353 + 8404761354.

It is an arithmetic number, because the mean of its divisors is an integer number (8404761354).

Almost surely, 2^16809522707 is an apocalyptic number.

16809522707 is a deficient number, since it is larger than the sum of its proper divisors (1).

16809522707 is an equidigital number, since it uses as much as digits as its factorization.

16809522707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 16809522707 in words is "sixteen billion, eight hundred nine million, five hundred twenty-two thousand, seven hundred seven".