5661037697983 has 2 divisors, whose sum is σ = 5661037697984. Its totient is φ = 5661037697982.

The previous prime is 5661037697947. The next prime is 5661037698073. The reversal of 5661037697983 is 3897967301665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5661037697983 - 2¹⁷ = 5661037566911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5661037607983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830518848991 + 2830518848992.

It is an arithmetic number, because the mean of its divisors is an integer number (2830518848992).

Almost surely, 2^{5661037697983} is an apocalyptic number.

5661037697983 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661037697983 is an equidigital number, since it uses as much as digits as its factorization.

5661037697983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 5661037697983 in words is "five trillion, six hundred sixty-one billion, thirty-seven million, six hundred ninety-seven thousand, nine hundred eighty-three".