163303403452 has 96 divisors (see below), whose sum is σ = 350880768000. Its totient is φ = 64907827200.

The previous prime is 163303403437. The next prime is 163303403479. The reversal of 163303403452 is 254304303361.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69460077 + ... + 69462427.

It is an arithmetic number, because the mean of its divisors is an integer number (3655008000).

Almost surely, 2^163303403452 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 163303403452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175440384000).

163303403452 is an abundant number, since it is smaller than the sum of its proper divisors (187577364548).

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

163303403452 is a wasteful number, since it uses less digits than its factorization.

163303403452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451 (or 4449 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

The spelling of 163303403452 in words is "one hundred sixty-three billion, three hundred three million, four hundred three thousand, four hundred fifty-two".