61168496771 has 2 divisors, whose sum is σ = 61168496772. Its totient is φ = 61168496770.

The previous prime is 61168496759. The next prime is 61168496861. The reversal of 61168496771 is 17769486116.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61168496771 is a prime.

It is not a weakly prime, because it can be changed into another prime (61168496731) 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, 30584248385 + 30584248386.

It is an arithmetic number, because the mean of its divisors is an integer number (30584248386).

Almost surely, 2^61168496771 is an apocalyptic number.

61168496771 is a deficient number, since it is larger than the sum of its proper divisors (1).

61168496771 is an equidigital number, since it uses as much as digits as its factorization.

61168496771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 56.

The spelling of 61168496771 in words is "sixty-one billion, one hundred sixty-eight million, four hundred ninety-six thousand, seven hundred seventy-one".