5551610165111 has 2 divisors, whose sum is σ = 5551610165112. Its totient is φ = 5551610165110.

The previous prime is 5551610165099. The next prime is 5551610165117. The reversal of 5551610165111 is 1115610161555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5551610165111 - 2³⁸ = 5276732258167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5551610165117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775805082555 + 2775805082556.

It is an arithmetic number, because the mean of its divisors is an integer number (2775805082556).

Almost surely, 2^{5551610165111} is an apocalyptic number.

5551610165111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551610165111 is an equidigital number, since it uses as much as digits as its factorization.

5551610165111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 38.

The spelling of 5551610165111 in words is "five trillion, five hundred fifty-one billion, six hundred ten million, one hundred sixty-five thousand, one hundred eleven".