16612122563 has 2 divisors, whose sum is σ = 16612122564. Its totient is φ = 16612122562.

The previous prime is 16612122557. The next prime is 16612122581. The reversal of 16612122563 is 36522121661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16612122563 - 2²⁰ = 16611073987 is a prime.

It is not a weakly prime, because it can be changed into another prime (16612122463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8306061281 + 8306061282.

It is an arithmetic number, because the mean of its divisors is an integer number (8306061282).

Almost surely, 2^16612122563 is an apocalyptic number.

16612122563 is a deficient number, since it is larger than the sum of its proper divisors (1).

16612122563 is an equidigital number, since it uses as much as digits as its factorization.

16612122563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The spelling of 16612122563 in words is "sixteen billion, six hundred twelve million, one hundred twenty-two thousand, five hundred sixty-three".