55660211611 has 2 divisors, whose sum is σ = 55660211612. Its totient is φ = 55660211610.

The previous prime is 55660211567. The next prime is 55660211657. The reversal of 55660211611 is 11611206655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55660211611 - 2¹⁹ = 55659687323 is a prime.

It is not a weakly prime, because it can be changed into another prime (55660211671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27830105805 + 27830105806.

It is an arithmetic number, because the mean of its divisors is an integer number (27830105806).

Almost surely, 2^55660211611 is an apocalyptic number.

55660211611 is a deficient number, since it is larger than the sum of its proper divisors (1).

55660211611 is an equidigital number, since it uses as much as digits as its factorization.

55660211611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 55660211611 in words is "fifty-five billion, six hundred sixty million, two hundred eleven thousand, six hundred eleven".