6656532356597 has 2 divisors, whose sum is σ = 6656532356598. Its totient is φ = 6656532356596.

The previous prime is 6656532356543. The next prime is 6656532356687. The reversal of 6656532356597 is 7956532356566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6323142751396 + 333389605201 = 2514586^2 + 577399^2 .

It is a cyclic number.

It is not a de Polignac number, because 6656532356597 - 2¹² = 6656532352501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6656532356797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328266178298 + 3328266178299.

It is an arithmetic number, because the mean of its divisors is an integer number (3328266178299).

Almost surely, 2^{6656532356597} is an apocalyptic number.

It is an amenable number.

6656532356597 is a deficient number, since it is larger than the sum of its proper divisors (1).

6656532356597 is an equidigital number, since it uses as much as digits as its factorization.

6656532356597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540000, while the sum is 68.

The spelling of 6656532356597 in words is "six trillion, six hundred fifty-six billion, five hundred thirty-two million, three hundred fifty-six thousand, five hundred ninety-seven".