16920967247 has 2 divisors, whose sum is σ = 16920967248. Its totient is φ = 16920967246.

The previous prime is 16920967223. The next prime is 16920967253. The reversal of 16920967247 is 74276902961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16920967247 - 2²⁰ = 16919918671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16920907247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8460483623 + 8460483624.

It is an arithmetic number, because the mean of its divisors is an integer number (8460483624).

Almost surely, 2^16920967247 is an apocalyptic number.

16920967247 is a deficient number, since it is larger than the sum of its proper divisors (1).

16920967247 is an equidigital number, since it uses as much as digits as its factorization.

16920967247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 16920967247 in words is "sixteen billion, nine hundred twenty million, nine hundred sixty-seven thousand, two hundred forty-seven".