6656101505671 has 2 divisors, whose sum is σ = 6656101505672. Its totient is φ = 6656101505670.

The previous prime is 6656101505639. The next prime is 6656101505719. The reversal of 6656101505671 is 1765051016566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6656101505671 - 2⁵ = 6656101505639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6656101505171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3328050752835 + 3328050752836.

It is an arithmetic number, because the mean of its divisors is an integer number (3328050752836).

Almost surely, 2^{6656101505671} is an apocalyptic number.

6656101505671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6656101505671 is an equidigital number, since it uses as much as digits as its factorization.

6656101505671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 6656101505671 in words is "six trillion, six hundred fifty-six billion, one hundred one million, five hundred five thousand, six hundred seventy-one".