163490784736 has 48 divisors (see below), whose sum is σ = 339407228160. Its totient is φ = 77307212160.

The previous prime is 163490784707. The next prime is 163490784763. The reversal of 163490784736 is 637487094361.

It is a congruent number.

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, 111705 + ... + 582631.

It is an arithmetic number, because the mean of its divisors is an integer number (7070983920).

Almost surely, 2^163490784736 is an apocalyptic number.

163490784736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163490784736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169703614080).

163490784736 is an abundant number, since it is smaller than the sum of its proper divisors (175916443424).

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

163490784736 is a wasteful number, since it uses less digits than its factorization.

163490784736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471527 (or 471519 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 163490784736 in words is "one hundred sixty-three billion, four hundred ninety million, seven hundred eighty-four thousand, seven hundred thirty-six".