16442072236523 has 4 divisors (see below), whose sum is σ = 16442088877680. Its totient is φ = 16442055595368.

The previous prime is 16442072236517. The next prime is 16442072236543. The reversal of 16442072236523 is 32563227024461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16442072236523 - 2⁸ = 16442072236267 is a prime.

It is a super-3 number, since 3×16442072236523³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16442072236543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6738215 + ... + 8848032.

It is an arithmetic number, because the mean of its divisors is an integer number (4110522219420).

Almost surely, 2^{16442072236523} is an apocalyptic number.

16442072236523 is a deficient number, since it is larger than the sum of its proper divisors (16641157).

16442072236523 is a wasteful number, since it uses less digits than its factorization.

16442072236523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16641156.

The product of its (nonzero) digits is 2903040, while the sum is 47.

The spelling of 16442072236523 in words is "sixteen trillion, four hundred forty-two billion, seventy-two million, two hundred thirty-six thousand, five hundred twenty-three".