3311272661 has 2 divisors, whose sum is σ = 3311272662. Its totient is φ = 3311272660.

The previous prime is 3311272649. The next prime is 3311272739. The reversal of 3311272661 is 1662721133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2862892036 + 448380625 = 53506^2 + 21175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3311272661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3311272621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655636330 + 1655636331.

It is an arithmetic number, because the mean of its divisors is an integer number (1655636331).

Almost surely, 2^3311272661 is an apocalyptic number.

It is an amenable number.

3311272661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3311272661 is an equidigital number, since it uses as much as digits as its factorization.

3311272661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 3311272661 is about 57543.6587383875. The cubic root of 3311272661 is about 1490.4988586808.

Adding to 3311272661 its reverse (1662721133), we get a palindrome (4973993794).

The spelling of 3311272661 in words is "three billion, three hundred eleven million, two hundred seventy-two thousand, six hundred sixty-one".