163309323240 has 96 divisors (see below), whose sum is σ = 606577495680. Its totient is φ = 37327844736.

The previous prime is 163309323227. The next prime is 163309323263. The reversal of 163309323240 is 42323903361.

163309323240 is a `hidden beast` number, since 1 + 6 + 3 + 309 + 323 + 24 + 0 = 666.

163309323240 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 163309323195 and 163309323204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32400124 + ... + 32405163.

It is an arithmetic number, because the mean of its divisors is an integer number (6318515580).

Almost surely, 2^163309323240 is an apocalyptic number.

163309323240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163309323240 is an abundant number, since it is smaller than the sum of its proper divisors (443268172440).

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

163309323240 is a wasteful number, since it uses less digits than its factorization.

163309323240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64805311 (or 64805304 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The spelling of 163309323240 in words is "one hundred sixty-three billion, three hundred nine million, three hundred twenty-three thousand, two hundred forty".