61055055163 has 2 divisors, whose sum is σ = 61055055164. Its totient is φ = 61055055162.

The previous prime is 61055055097. The next prime is 61055055181. The reversal of 61055055163 is 36155055016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61055055163 - 2¹³ = 61055046971 is a prime.

It is not a weakly prime, because it can be changed into another prime (61050055163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30527527581 + 30527527582.

It is an arithmetic number, because the mean of its divisors is an integer number (30527527582).

Almost surely, 2^61055055163 is an apocalyptic number.

61055055163 is a deficient number, since it is larger than the sum of its proper divisors (1).

61055055163 is an equidigital number, since it uses as much as digits as its factorization.

61055055163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The spelling of 61055055163 in words is "sixty-one billion, fifty-five million, fifty-five thousand, one hundred sixty-three".