5551166510611 has 2 divisors, whose sum is σ = 5551166510612. Its totient is φ = 5551166510610.

The previous prime is 5551166510501. The next prime is 5551166510627. The reversal of 5551166510611 is 1160156611555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5551166510611 is a prime.

It is not a weakly prime, because it can be changed into another prime (5551166570611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775583255305 + 2775583255306.

It is an arithmetic number, because the mean of its divisors is an integer number (2775583255306).

Almost surely, 2^{5551166510611} is an apocalyptic number.

5551166510611 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551166510611 is an equidigital number, since it uses as much as digits as its factorization.

5551166510611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 5551166510611 in words is "five trillion, five hundred fifty-one billion, one hundred sixty-six million, five hundred ten thousand, six hundred eleven".