16144133021 has 8 divisors (see below), whose sum is σ = 16877203584. Its totient is φ = 15413658480.

The previous prime is 16144132967. The next prime is 16144133029. The reversal of 16144133021 is 12033144161.

It is a happy number.

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 16144133021 - 2⁶ = 16144132957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16144133029) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 636281 + ... + 661166.

It is an arithmetic number, because the mean of its divisors is an integer number (2109650448).

Almost surely, 2^16144133021 is an apocalyptic number.

It is an amenable number.

16144133021 is a deficient number, since it is larger than the sum of its proper divisors (733070563).

16144133021 is a wasteful number, since it uses less digits than its factorization.

16144133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298011.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 16144133021 its reverse (12033144161), we get a palindrome (28177277182).

The spelling of 16144133021 in words is "sixteen billion, one hundred forty-four million, one hundred thirty-three thousand, twenty-one".