163474734320 has 40 divisors (see below), whose sum is σ = 380492507040. Its totient is φ = 65318711040.

The previous prime is 163474734271. The next prime is 163474734349. The reversal of 163474734320 is 23437474361.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038251 + ... + 1185290.

It is an arithmetic number, because the mean of its divisors is an integer number (9512312676).

Almost surely, 2^163474734320 is an apocalyptic number.

163474734320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163474734320 is an abundant number, since it is smaller than the sum of its proper divisors (217017772720).

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

163474734320 is a wasteful number, since it uses less digits than its factorization.

163474734320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224473 (or 2224467 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 44.

The spelling of 163474734320 in words is "one hundred sixty-three billion, four hundred seventy-four million, seven hundred thirty-four thousand, three hundred twenty".