16662631417361 has 4 divisors (see below), whose sum is σ = 16663234006452. Its totient is φ = 16662028828272.

The previous prime is 16662631417337. The next prime is 16662631417433. The reversal of 16662631417361 is 16371413626661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2779369116736 + 13883262300625 = 1667144^2 + 3726025^2 .

It is a cyclic number.

It is not a de Polignac number, because 16662631417361 - 2¹⁴ = 16662631400977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16662631417561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301253066 + ... + 301308371.

It is an arithmetic number, because the mean of its divisors is an integer number (4165808501613).

Almost surely, 2^{16662631417361} is an apocalyptic number.

It is an amenable number.

16662631417361 is a deficient number, since it is larger than the sum of its proper divisors (602589091).

16662631417361 is an equidigital number, since it uses as much as digits as its factorization.

16662631417361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602589090.

The product of its digits is 3919104, while the sum is 53.

The spelling of 16662631417361 in words is "sixteen trillion, six hundred sixty-two billion, six hundred thirty-one million, four hundred seventeen thousand, three hundred sixty-one".