2034601661 has 2 divisors, whose sum is σ = 2034601662. Its totient is φ = 2034601660.

The previous prime is 2034601651. The next prime is 2034601687. The reversal of 2034601661 is 1661064302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1338169561 + 696432100 = 36581^2 + 26390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2034601661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2034601601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1017300830 + 1017300831.

It is an arithmetic number, because the mean of its divisors is an integer number (1017300831).

Almost surely, 2^2034601661 is an apocalyptic number.

It is an amenable number.

2034601661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2034601661 is an equidigital number, since it uses as much as digits as its factorization.

2034601661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2034601661 is about 45106.5589576505. The cubic root of 2034601661 is about 1267.1454395638.

Adding to 2034601661 its reverse (1661064302), we get a palindrome (3695665963).

The spelling of 2034601661 in words is "two billion, thirty-four million, six hundred one thousand, six hundred sixty-one".