16445021002 has 8 divisors (see below), whose sum is σ = 24668079300. Its totient is φ = 8222327904.

The previous prime is 16445020987. The next prime is 16445021041. The reversal of 16445021002 is 20012054461.

It is a happy number.

16445021002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16412428321 + 32592681 = 128111^2 + 5709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110374 + ... + 212302.

Almost surely, 2^16445021002 is an apocalyptic number.

16445021002 is a deficient number, since it is larger than the sum of its proper divisors (8223058298).

16445021002 is a wasteful number, since it uses less digits than its factorization.

16445021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182600.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 16445021002 its reverse (20012054461), we get a palindrome (36457075463).

The spelling of 16445021002 in words is "sixteen billion, four hundred forty-five million, twenty-one thousand, two".