160389252421 has 2 divisors, whose sum is σ = 160389252422. Its totient is φ = 160389252420.

The previous prime is 160389252409. The next prime is 160389252523. The reversal of 160389252421 is 124252983061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160389036196 + 216225 = 400486^2 + 465^2 .

It is an emirp because it is prime and its reverse (124252983061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160389252421 - 2⁵ = 160389252389 is a prime.

It is a super-2 number, since 2×160389252421² (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 (160389253421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80194626210 + 80194626211.

It is an arithmetic number, because the mean of its divisors is an integer number (80194626211).

Almost surely, 2^160389252421 is an apocalyptic number.

It is an amenable number.

160389252421 is a deficient number, since it is larger than the sum of its proper divisors (1).

160389252421 is an equidigital number, since it uses as much as digits as its factorization.

160389252421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 160389252421 in words is "one hundred sixty billion, three hundred eighty-nine million, two hundred fifty-two thousand, four hundred twenty-one".