6553863661087 has 2 divisors, whose sum is σ = 6553863661088. Its totient is φ = 6553863661086.

The previous prime is 6553863661073. The next prime is 6553863661123. The reversal of 6553863661087 is 7801663683556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6553863661087 - 2⁷ = 6553863660959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6553863661067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276931830543 + 3276931830544.

It is an arithmetic number, because the mean of its divisors is an integer number (3276931830544).

Almost surely, 2^{6553863661087} is an apocalyptic number.

6553863661087 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553863661087 is an equidigital number, since it uses as much as digits as its factorization.

6553863661087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 130636800, while the sum is 64.

The spelling of 6553863661087 in words is "six trillion, five hundred fifty-three billion, eight hundred sixty-three million, six hundred sixty-one thousand, eighty-seven".