16442621502263 has 24 divisors (see below), whose sum is σ = 18262104235200. Its totient is φ = 14791721472000.

The previous prime is 16442621502253. The next prime is 16442621502313. The reversal of 16442621502263 is 36220512624461.

It is a happy number.

It is not a de Polignac number, because 16442621502263 - 2¹⁶ = 16442621436727 is a prime.

It is a super-3 number, since 3×16442621502263³ (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 (16442621502233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89684738 + ... + 89867888.

It is an arithmetic number, because the mean of its divisors is an integer number (760921009800).

Almost surely, 2^{16442621502263} is an apocalyptic number.

16442621502263 is a deficient number, since it is larger than the sum of its proper divisors (1819482732937).

16442621502263 is a wasteful number, since it uses less digits than its factorization.

16442621502263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190919 (or 190908 counting only the distinct ones).

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

The spelling of 16442621502263 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-one million, five hundred two thousand, two hundred sixty-three".