16343967674 has 4 divisors (see below), whose sum is σ = 24515951514. Its totient is φ = 8171983836.

The previous prime is 16343967667. The next prime is 16343967683. The reversal of 16343967674 is 47676934361.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 11525525449 + 4818442225 = 107357^2 + 69415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4085991917 + ... + 4085991920.

Almost surely, 2^16343967674 is an apocalyptic number.

16343967674 is a deficient number, since it is larger than the sum of its proper divisors (8171983840).

16343967674 is an equidigital number, since it uses as much as digits as its factorization.

16343967674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8171983839.

The product of its digits is 13716864, while the sum is 56.

The spelling of 16343967674 in words is "sixteen billion, three hundred forty-three million, nine hundred sixty-seven thousand, six hundred seventy-four".