16434888512 has 168 divisors, whose sum is σ = 39281709600. Its totient is φ = 6797177856.

The previous prime is 16434888511. The next prime is 16434888521. The reversal of 16434888512 is 21588843461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434888511) 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, 16127939 + ... + 16128957.

It is an arithmetic number, because the mean of its divisors is an integer number (233819700).

Almost surely, 2^16434888512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16434888512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19640854800).

16434888512 is an abundant number, since it is smaller than the sum of its proper divisors (22846821088).

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

16434888512 is a wasteful number, since it uses less digits than its factorization.

16434888512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1204 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

The spelling of 16434888512 in words is "sixteen billion, four hundred thirty-four million, eight hundred eighty-eight thousand, five hundred twelve".