2162332681 has 2 divisors, whose sum is σ = 2162332682. Its totient is φ = 2162332680.

The previous prime is 2162332589. The next prime is 2162332687. The reversal of 2162332681 is 1862332612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1149820281 + 1012512400 = 33909^2 + 31820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162332681 - 2¹⁵ = 2162299913 is a prime.

It is a super-2 number, since 2×2162332681² = 9351365246641295522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2162332687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081166340 + 1081166341.

It is an arithmetic number, because the mean of its divisors is an integer number (1081166341).

Almost surely, 2^2162332681 is an apocalyptic number.

It is an amenable number.

2162332681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162332681 is an equidigital number, since it uses as much as digits as its factorization.

2162332681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 2162332681 is about 46500.8890345120. The cubic root of 2162332681 is about 1293.1259807622.

The spelling of 2162332681 in words is "two billion, one hundred sixty-two million, three hundred thirty-two thousand, six hundred eighty-one".