16456520063 has 2 divisors, whose sum is σ = 16456520064. Its totient is φ = 16456520062.

The previous prime is 16456520053. The next prime is 16456520111. The reversal of 16456520063 is 36002565461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16456520063 - 2¹⁸ = 16456257919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16456519999 and 16456520026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16456520023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8228260031 + 8228260032.

It is an arithmetic number, because the mean of its divisors is an integer number (8228260032).

Almost surely, 2^16456520063 is an apocalyptic number.

16456520063 is a deficient number, since it is larger than the sum of its proper divisors (1).

16456520063 is an equidigital number, since it uses as much as digits as its factorization.

16456520063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 16456520063 in words is "sixteen billion, four hundred fifty-six million, five hundred twenty thousand, sixty-three".