61116555011 has 2 divisors, whose sum is σ = 61116555012. Its totient is φ = 61116555010.

The previous prime is 61116554959. The next prime is 61116555047. The reversal of 61116555011 is 11055561116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61116555011 - 2¹⁴ = 61116538627 is a prime.

It is not a weakly prime, because it can be changed into another prime (61116555061) 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, 30558277505 + 30558277506.

It is an arithmetic number, because the mean of its divisors is an integer number (30558277506).

Almost surely, 2^61116555011 is an apocalyptic number.

61116555011 is a deficient number, since it is larger than the sum of its proper divisors (1).

61116555011 is an equidigital number, since it uses as much as digits as its factorization.

61116555011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 61116555011 in words is "sixty-one billion, one hundred sixteen million, five hundred fifty-five thousand, eleven".