163332351220 has 12 divisors (see below), whose sum is σ = 342997937604. Its totient is φ = 65332940480.

The previous prime is 163332351209. The next prime is 163332351257. The reversal of 163332351220 is 22153233361.

It can be written as a sum of positive squares in 2 ways, for example, as 50601602704 + 112730748516 = 224948^2 + 335754^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4083308761 + ... + 4083308800.

It is an arithmetic number, because the mean of its divisors is an integer number (28583161467).

Almost surely, 2^163332351220 is an apocalyptic number.

163332351220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163332351220 is an abundant number, since it is smaller than the sum of its proper divisors (179665586384).

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

163332351220 is a wasteful number, since it uses less digits than its factorization.

163332351220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8166617570 (or 8166617568 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 163332351220 its reverse (22153233361), we get a palindrome (185485584581).

The spelling of 163332351220 in words is "one hundred sixty-three billion, three hundred thirty-two million, three hundred fifty-one thousand, two hundred twenty".