16442621504063 has 8 divisors (see below), whose sum is σ = 16580189648880. Its totient is φ = 16305616010880.

The previous prime is 16442621504003. The next prime is 16442621504077. The reversal of 16442621504063 is 36040512624461.

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 16442621504063 - 2¹⁶ = 16442621438527 is a prime.

It is a super-3 number, since 3×16442621504063³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442621504003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140604218 + ... + 140721111.

It is an arithmetic number, because the mean of its divisors is an integer number (2072523706110).

Almost surely, 2^{16442621504063} is an apocalyptic number.

16442621504063 is a deficient number, since it is larger than the sum of its proper divisors (137568144817).

16442621504063 is a wasteful number, since it uses less digits than its factorization.

16442621504063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281325817.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 16442621504063 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-one million, five hundred four thousand, sixty-three".