160905444892201 has 9 divisors (see below), whose sum is σ = 161114394060759. Its totient is φ = 160696766408400.

The previous prime is 160905444892177. The next prime is 160905444892223. The reversal of 160905444892201 is 102298444509061.

The square root of 160905444892201 is 12684851.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 160247723892201 + 657721000000 = 12658899^2 + 811000^2 .

It is not a de Polignac number, because 160905444892201 - 2³³ = 160896854957609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160905444892001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10287406341 + ... + 10287421981.

Almost surely, 2^{160905444892201} is an apocalyptic number.

160905444892201 is the 12684851-st square number.

160905444892201 is the 6342426-th centered octagonal number.

It is an amenable number.

160905444892201 is a deficient number, since it is larger than the sum of its proper divisors (208949168558).

160905444892201 is an frugal number, since it uses more digits than its factorization.

160905444892201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32904 (or 16452 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 160905444892201 in words is "one hundred sixty trillion, nine hundred five billion, four hundred forty-four million, eight hundred ninety-two thousand, two hundred one".