16426620503 has 2 divisors, whose sum is σ = 16426620504. Its totient is φ = 16426620502.

The previous prime is 16426620323. The next prime is 16426620517. The reversal of 16426620503 is 30502662461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16426620503 - 2⁸ = 16426620247 is a prime.

It is a super-2 number, since 2×16426620503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16426620703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213310251 + 8213310252.

It is an arithmetic number, because the mean of its divisors is an integer number (8213310252).

Almost surely, 2^16426620503 is an apocalyptic number.

16426620503 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426620503 is an equidigital number, since it uses as much as digits as its factorization.

16426620503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 16426620503 in words is "sixteen billion, four hundred twenty-six million, six hundred twenty thousand, five hundred three".