163712655512 has 128 divisors (see below), whose sum is σ = 370108569600. Its totient is φ = 66373198848.

The previous prime is 163712655511. The next prime is 163712655523. The reversal of 163712655512 is 215556217361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163712655511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149236148 + ... + 149237244.

It is an arithmetic number, because the mean of its divisors is an integer number (2891473200).

Almost surely, 2^163712655512 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 163712655512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185054284800).

163712655512 is an abundant number, since it is smaller than the sum of its proper divisors (206395914088).

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

163712655512 is a wasteful number, since it uses less digits than its factorization.

163712655512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305 (or 2301 counting only the distinct ones).

The product of its digits is 378000, while the sum is 44.

The spelling of 163712655512 in words is "one hundred sixty-three billion, seven hundred twelve million, six hundred fifty-five thousand, five hundred twelve".