16723812653 has 2 divisors, whose sum is σ = 16723812654. Its totient is φ = 16723812652.

The previous prime is 16723812641. The next prime is 16723812689. The reversal of 16723812653 is 35621832761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12651075529 + 4072737124 = 112477^2 + 63818^2 .

It is a cyclic number.

It is not a de Polignac number, because 16723812653 - 2¹² = 16723808557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16723812953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361906326 + 8361906327.

It is an arithmetic number, because the mean of its divisors is an integer number (8361906327).

Almost surely, 2^16723812653 is an apocalyptic number.

It is an amenable number.

16723812653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16723812653 is an equidigital number, since it uses as much as digits as its factorization.

16723812653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The spelling of 16723812653 in words is "sixteen billion, seven hundred twenty-three million, eight hundred twelve thousand, six hundred fifty-three".