16451506620103 has 2 divisors, whose sum is σ = 16451506620104. Its totient is φ = 16451506620102.

The previous prime is 16451506620067. The next prime is 16451506620113. The reversal of 16451506620103 is 30102660515461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16451506620103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16451506620113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8225753310051 + 8225753310052.

It is an arithmetic number, because the mean of its divisors is an integer number (8225753310052).

Almost surely, 2^{16451506620103} is an apocalyptic number.

16451506620103 is a deficient number, since it is larger than the sum of its proper divisors (1).

16451506620103 is an equidigital number, since it uses as much as digits as its factorization.

16451506620103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 16451506620103 in words is "sixteen trillion, four hundred fifty-one billion, five hundred six million, six hundred twenty thousand, one hundred three".