16442061223 has 8 divisors (see below), whose sum is σ = 18938888192. Its totient is φ = 13982224536.

The previous prime is 16442061197. The next prime is 16442061227. The reversal of 16442061223 is 32216024461.

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

It is not a de Polignac number, because 16442061223 - 2⁵ = 16442061191 is a prime.

It is a super-3 number, since 3×16442061223³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442061227) 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, 9246615 + ... + 9248392.

It is an arithmetic number, because the mean of its divisors is an integer number (2367361024).

Almost surely, 2^16442061223 is an apocalyptic number.

16442061223 is a deficient number, since it is larger than the sum of its proper divisors (2496826969).

16442061223 is a wasteful number, since it uses less digits than its factorization.

16442061223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18495141.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 16442061223 its reverse (32216024461), we get a palindrome (48658085684).

The spelling of 16442061223 in words is "sixteen billion, four hundred forty-two million, sixty-one thousand, two hundred twenty-three".