2201661629 has 2 divisors, whose sum is σ = 2201661630. Its totient is φ = 2201661628.

The previous prime is 2201661599. The next prime is 2201661661. The reversal of 2201661629 is 9261661022.

It is a happy number.

2201661629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2033829604 + 167832025 = 45098^2 + 12955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201661629 - 2¹² = 2201657533 is a prime.

It is a super-2 number, since 2×2201661629² = 9694627857221867282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201661929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100830814 + 1100830815.

It is an arithmetic number, because the mean of its divisors is an integer number (1100830815).

Almost surely, 2^2201661629 is an apocalyptic number.

It is an amenable number.

2201661629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201661629 is an equidigital number, since it uses as much as digits as its factorization.

2201661629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2201661629 is about 46921.8672795531. The cubic root of 2201661629 is about 1300.9188039136.

The spelling of 2201661629 in words is "two billion, two hundred one million, six hundred sixty-one thousand, six hundred twenty-nine".