6610020517 has 2 divisors, whose sum is σ = 6610020518. Its totient is φ = 6610020516.

The previous prime is 6610020449. The next prime is 6610020553. The reversal of 6610020517 is 7150200166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5304354561 + 1305665956 = 72831^2 + 36134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6610020517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6610023517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305010258 + 3305010259.

It is an arithmetic number, because the mean of its divisors is an integer number (3305010259).

Almost surely, 2^6610020517 is an apocalyptic number.

It is an amenable number.

6610020517 is a deficient number, since it is larger than the sum of its proper divisors (1).

6610020517 is an equidigital number, since it uses as much as digits as its factorization.

6610020517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 6610020517 is about 81302.0326744664. The cubic root of 6610020517 is about 1876.7262813951.

The spelling of 6610020517 in words is "six billion, six hundred ten million, twenty thousand, five hundred seventeen".