423558168072 has 256 divisors, whose sum is σ = 1220792401920. Its totient is φ = 121510886400.

The previous prime is 423558168043. The next prime is 423558168073. The reversal of 423558168072 is 270861855324.

It is not an unprimeable number, because it can be changed into a prime (423558168073) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36854247 + ... + 36865737.

It is an arithmetic number, because the mean of its divisors is an integer number (4768720320).

Almost surely, 2^423558168072 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 423558168072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610396200960).

423558168072 is an abundant number, since it is smaller than the sum of its proper divisors (797234233848).

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

423558168072 is a wasteful number, since it uses less digits than its factorization.

423558168072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11684 (or 11680 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 423558168072 in words is "four hundred twenty-three billion, five hundred fifty-eight million, one hundred sixty-eight thousand, seventy-two".