160721547560 has 128 divisors (see below), whose sum is σ = 438333120000. Its totient is φ = 51775586304.

The previous prime is 160721547527. The next prime is 160721547589. The reversal of 160721547560 is 65745127061.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2823056 + ... + 2879424.

It is an arithmetic number, because the mean of its divisors is an integer number (3424477500).

Almost surely, 2^160721547560 is an apocalyptic number.

160721547560 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 160721547560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219166560000).

160721547560 is an abundant number, since it is smaller than the sum of its proper divisors (277611572440).

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

160721547560 is a wasteful number, since it uses less digits than its factorization.

160721547560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57003 (or 56999 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 160721547560 in words is "one hundred sixty billion, seven hundred twenty-one million, five hundred forty-seven thousand, five hundred sixty".