160216261 has 2 divisors, whose sum is σ = 160216262. Its totient is φ = 160216260.

The previous prime is 160216241. The next prime is 160216267. The reversal of 160216261 is 162612061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120450625 + 39765636 = 10975^2 + 6306^2 .

It is a cyclic number.

It is not a de Polignac number, because 160216261 - 2²¹ = 158119109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160216267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80108130 + 80108131.

It is an arithmetic number, because the mean of its divisors is an integer number (80108131).

Almost surely, 2^160216261 is an apocalyptic number.

It is an amenable number.

160216261 is a deficient number, since it is larger than the sum of its proper divisors (1).

160216261 is an equidigital number, since it uses as much as digits as its factorization.

160216261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 160216261 is about 12657.6562206437. The cubic root of 160216261 is about 543.1280059803.

The spelling of 160216261 in words is "one hundred sixty million, two hundred sixteen thousand, two hundred sixty-one".