163724924672 has 18 divisors (see below), whose sum is σ = 326810299368. Its totient is φ = 81862462208.

The previous prime is 163724924663. The next prime is 163724924677. The reversal of 163724924672 is 276429427361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163724924677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319774988 + ... + 319775499.

Almost surely, 2^163724924672 is an apocalyptic number.

It is an amenable number.

163724924672 is a deficient number, since it is larger than the sum of its proper divisors (163085374696).

163724924672 is an frugal number, since it uses more digits than its factorization.

163724924672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639550503 (or 639550489 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 53.

The spelling of 163724924672 in words is "one hundred sixty-three billion, seven hundred twenty-four million, nine hundred twenty-four thousand, six hundred seventy-two".