163324542550 has 48 divisors (see below), whose sum is σ = 327261553920. Its totient is φ = 60284183040.

The previous prime is 163324542539. The next prime is 163324542553. The reversal of 163324542550 is 55245423361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163324542553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1967179 + ... + 2048521.

It is an arithmetic number, because the mean of its divisors is an integer number (6817949040).

Almost surely, 2^163324542550 is an apocalyptic number.

163324542550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163324542550 is an abundant number, since it is smaller than the sum of its proper divisors (163937011370).

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

163324542550 is a wasteful number, since it uses less digits than its factorization.

163324542550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84457 (or 84452 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 163324542550 in words is "one hundred sixty-three billion, three hundred twenty-four million, five hundred forty-two thousand, five hundred fifty".