Search a number
-
+
160601397181 is a prime number
BaseRepresentation
bin1001010110010010010…
…1101101011110111101
3120100112120212021211121
42111210211231132331
510112402424202211
6201440153150541
714413565231521
oct2254445553675
9510476767747
10160601397181
1162124335825
12271610bb451
13121b5a34444
147ab7741d81
15429e684271
hex256496d7bd

160601397181 has 2 divisors, whose sum is σ = 160601397182. Its totient is φ = 160601397180.

The previous prime is 160601397107. The next prime is 160601397217. The reversal of 160601397181 is 181793106061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88307631556 + 72293765625 = 297166^2 + 268875^2 .

It is a cyclic number.

It is not a de Polignac number, because 160601397181 - 225 = 160567842749 is a prime.

It is a super-2 number, since 2×1606013971812 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160604397181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80300698590 + 80300698591.

It is an arithmetic number, because the mean of its divisors is an integer number (80300698591).

Almost surely, 2160601397181 is an apocalyptic number.

It is an amenable number.

160601397181 is a deficient number, since it is larger than the sum of its proper divisors (1).

160601397181 is an equidigital number, since it uses as much as digits as its factorization.

160601397181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 160601397181 in words is "one hundred sixty billion, six hundred one million, three hundred ninety-seven thousand, one hundred eighty-one".