6553661156027 has 2 divisors, whose sum is σ = 6553661156028. Its totient is φ = 6553661156026.

The previous prime is 6553661155999. The next prime is 6553661156101. The reversal of 6553661156027 is 7206511663556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6553661156027 - 2²⁰ = 6553660107451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6553661156027.

It is not a weakly prime, because it can be changed into another prime (6553661150027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276830578013 + 3276830578014.

It is an arithmetic number, because the mean of its divisors is an integer number (3276830578014).

Almost surely, 2^{6553661156027} is an apocalyptic number.

6553661156027 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553661156027 is an equidigital number, since it uses as much as digits as its factorization.

6553661156027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 6553661156027 in words is "six trillion, five hundred fifty-three billion, six hundred sixty-one million, one hundred fifty-six thousand, twenty-seven".