6610655533 has 2 divisors, whose sum is σ = 6610655534. Its totient is φ = 6610655532.

The previous prime is 6610655521. The next prime is 6610655537. The reversal of 6610655533 is 3355560166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5912533449 + 698122084 = 76893^2 + 26422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6610655533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6610655537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305327766 + 3305327767.

It is an arithmetic number, because the mean of its divisors is an integer number (3305327767).

Almost surely, 2^6610655533 is an apocalyptic number.

It is an amenable number.

6610655533 is a deficient number, since it is larger than the sum of its proper divisors (1).

6610655533 is an equidigital number, since it uses as much as digits as its factorization.

6610655533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 40.

The square root of 6610655533 is about 81305.9378704901. The cubic root of 6610655533 is about 1876.7863776813.

The spelling of 6610655533 in words is "six billion, six hundred ten million, six hundred fifty-five thousand, five hundred thirty-three".