160216431665 has 8 divisors (see below), whose sum is σ = 192263004648. Its totient is φ = 128170954240.

The previous prime is 160216431637. The next prime is 160216431667. The reversal of 160216431665 is 566134612061.

It can be written as a sum of positive squares in 4 ways, for example, as 2712222241 + 157504209424 = 52079^2 + 396868^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 160216431665 - 2²⁰ = 160215383089 is a prime.

It is a super-3 number, since 3×160216431665³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160216431667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92375 + ... + 573555.

It is an arithmetic number, because the mean of its divisors is an integer number (24032875581).

Almost surely, 2^160216431665 is an apocalyptic number.

It is an amenable number.

160216431665 is a deficient number, since it is larger than the sum of its proper divisors (32046572983).

160216431665 is an equidigital number, since it uses as much as digits as its factorization.

160216431665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547779.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 160216431665 in words is "one hundred sixty billion, two hundred sixteen million, four hundred thirty-one thousand, six hundred sixty-five".