16368429538 has 4 divisors (see below), whose sum is σ = 24552644310. Its totient is φ = 8184214768.

The previous prime is 16368429521. The next prime is 16368429557. The reversal of 16368429538 is 83592486361.

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., 15456208329 + 912221209 = 124323^2 + 30203^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4092107383 + ... + 4092107386.

Almost surely, 2^16368429538 is an apocalyptic number.

16368429538 is a deficient number, since it is larger than the sum of its proper divisors (8184214772).

16368429538 is an equidigital number, since it uses as much as digits as its factorization.

16368429538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184214771.

The product of its digits is 7464960, while the sum is 55.

The spelling of 16368429538 in words is "sixteen billion, three hundred sixty-eight million, four hundred twenty-nine thousand, five hundred thirty-eight".