16613970563 has 2 divisors, whose sum is σ = 16613970564. Its totient is φ = 16613970562.

The previous prime is 16613970491. The next prime is 16613970577. The reversal of 16613970563 is 36507931661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16613970563 - 2¹⁰ = 16613969539 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16613910563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8306985281 + 8306985282.

It is an arithmetic number, because the mean of its divisors is an integer number (8306985282).

Almost surely, 2^16613970563 is an apocalyptic number.

16613970563 is a deficient number, since it is larger than the sum of its proper divisors (1).

16613970563 is an equidigital number, since it uses as much as digits as its factorization.

16613970563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 16613970563 in words is "sixteen billion, six hundred thirteen million, nine hundred seventy thousand, five hundred sixty-three".