16423423512 has 32 divisors (see below), whose sum is σ = 43473769200. Its totient is φ = 5152446464.

The previous prime is 16423423481. The next prime is 16423423517. The reversal of 16423423512 is 21532432461.

16423423512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16423423517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20126337 + ... + 20127152.

Almost surely, 2^16423423512 is an apocalyptic number.

16423423512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16423423512 is an abundant number, since it is smaller than the sum of its proper divisors (27050345688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16423423512 is a wasteful number, since it uses less digits than its factorization.

16423423512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40253515 (or 40253511 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

Adding to 16423423512 its reverse (21532432461), we get a palindrome (37955855973).

The spelling of 16423423512 in words is "sixteen billion, four hundred twenty-three million, four hundred twenty-three thousand, five hundred twelve".