161748784704 has 56 divisors (see below), whose sum is σ = 460880358400. Its totient is φ = 49768856064.

The previous prime is 161748784627. The next prime is 161748784733. The reversal of 161748784704 is 407487847161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32399104 + ... + 32404095.

It is an arithmetic number, because the mean of its divisors is an integer number (8230006400).

Almost surely, 2^161748784704 is an apocalyptic number.

It is an amenable number.

161748784704 is an abundant number, since it is smaller than the sum of its proper divisors (299131573696).

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

161748784704 is a wasteful number, since it uses less digits than its factorization.

161748784704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64803227 (or 64803217 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 57.

The spelling of 161748784704 in words is "one hundred sixty-one billion, seven hundred forty-eight million, seven hundred eighty-four thousand, seven hundred four".