160731797940 has 288 divisors, whose sum is σ = 570678151680. Its totient is φ = 35860608000.

The previous prime is 160731797893. The next prime is 160731797969. The reversal of 160731797940 is 49797137061.

160731797940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 9026566 + ... + 9044354.

It is an arithmetic number, because the mean of its divisors is an integer number (1981521360).

Almost surely, 2^160731797940 is an apocalyptic number.

160731797940 is a gapful number since it is divisible by the number (10) 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 160731797940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285339075840).

160731797940 is an abundant number, since it is smaller than the sum of its proper divisors (409946353740).

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

160731797940 is a wasteful number, since it uses less digits than its factorization.

160731797940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17983 (or 17978 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 160731797940 in words is "one hundred sixty billion, seven hundred thirty-one million, seven hundred ninety-seven thousand, nine hundred forty".