16353632224561 has 2 divisors, whose sum is σ = 16353632224562. Its totient is φ = 16353632224560.

The previous prime is 16353632224453. The next prime is 16353632224577. The reversal of 16353632224561 is 16542223635361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12646871387536 + 3706760837025 = 3556244^2 + 1925295^2 .

It is a cyclic number.

It is not a de Polignac number, because 16353632224561 - 2¹¹ = 16353632222513 is a prime.

It is not a weakly prime, because it can be changed into another prime (16353632225561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8176816112280 + 8176816112281.

It is an arithmetic number, because the mean of its divisors is an integer number (8176816112281).

Almost surely, 2^{16353632224561} is an apocalyptic number.

It is an amenable number.

16353632224561 is a deficient number, since it is larger than the sum of its proper divisors (1).

16353632224561 is an equidigital number, since it uses as much as digits as its factorization.

16353632224561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 49.

The spelling of 16353632224561 in words is "sixteen trillion, three hundred fifty-three billion, six hundred thirty-two million, two hundred twenty-four thousand, five hundred sixty-one".