16445021005 has 8 divisors (see below), whose sum is σ = 22553171712. Its totient is φ = 11276585808.

The previous prime is 16445020987. The next prime is 16445021041. The reversal of 16445021005 is 50012054461.

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

It is a cyclic number.

It is not a de Polignac number, because 16445021005 - 2¹³ = 16445012813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234928837 + ... + 234928906.

It is an arithmetic number, because the mean of its divisors is an integer number (2819146464).

Almost surely, 2^16445021005 is an apocalyptic number.

It is an amenable number.

16445021005 is a deficient number, since it is larger than the sum of its proper divisors (6108150707).

16445021005 is an equidigital number, since it uses as much as digits as its factorization.

16445021005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469857755.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 16445021005 its reverse (50012054461), we get a palindrome (66457075466).

The spelling of 16445021005 in words is "sixteen billion, four hundred forty-five million, twenty-one thousand, five".