16722920651 has 2 divisors, whose sum is σ = 16722920652. Its totient is φ = 16722920650.

The previous prime is 16722920629. The next prime is 16722920653. The reversal of 16722920651 is 15602922761.

16722920651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16722920651 is a prime.

Together with 16722920653, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16722920599 and 16722920608.

It is not a weakly prime, because it can be changed into another prime (16722920653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361460325 + 8361460326.

It is an arithmetic number, because the mean of its divisors is an integer number (8361460326).

Almost surely, 2^16722920651 is an apocalyptic number.

16722920651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16722920651 is an equidigital number, since it uses as much as digits as its factorization.

16722920651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 16722920651 in words is "sixteen billion, seven hundred twenty-two million, nine hundred twenty thousand, six hundred fifty-one".