16343634361 has 4 divisors (see below), whose sum is σ = 16349901300. Its totient is φ = 16337367424.

The previous prime is 16343634323. The next prime is 16343634379.

16343634361 is nontrivially palindromic in base 10.

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 3835448761 + 12508185600 = 61931^2 + 111840^2 .

It is a cyclic number.

It is not a de Polignac number, because 16343634361 - 2¹⁹ = 16343110073 is a prime.

It is a super-2 number, since 2×16343634361² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16343634161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3129556 + ... + 3134773.

It is an arithmetic number, because the mean of its divisors is an integer number (4087475325).

Almost surely, 2^16343634361 is an apocalyptic number.

It is an amenable number.

16343634361 is a deficient number, since it is larger than the sum of its proper divisors (6266939).

16343634361 is an equidigital number, since it uses as much as digits as its factorization.

16343634361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266938.

The product of its digits is 279936, while the sum is 40.

The spelling of 16343634361 in words is "sixteen billion, three hundred forty-three million, six hundred thirty-four thousand, three hundred sixty-one".