5661656027 has 2 divisors, whose sum is σ = 5661656028. Its totient is φ = 5661656026.

The previous prime is 5661655997. The next prime is 5661656041. The reversal of 5661656027 is 7206561665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5661656027 - 2²⁸ = 5393220571 is a prime.

It is not a weakly prime, because it can be changed into another prime (5661656827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830828013 + 2830828014.

It is an arithmetic number, because the mean of its divisors is an integer number (2830828014).

Almost surely, 2^5661656027 is an apocalyptic number.

5661656027 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661656027 is an equidigital number, since it uses as much as digits as its factorization.

5661656027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 5661656027 is about 75243.9766825226. The cubic root of 5661656027 is about 1782.3014487451.

The spelling of 5661656027 in words is "five billion, six hundred sixty-one million, six hundred fifty-six thousand, twenty-seven".