161167766029 has 2 divisors, whose sum is σ = 161167766030. Its totient is φ = 161167766028.

The previous prime is 161167765951. The next prime is 161167766033. The reversal of 161167766029 is 920667761161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120968318025 + 40199448004 = 347805^2 + 200498^2 .

It is a cyclic number.

It is not a de Polignac number, because 161167766029 - 2¹⁵ = 161167733261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161167766329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80583883014 + 80583883015.

It is an arithmetic number, because the mean of its divisors is an integer number (80583883015).

Almost surely, 2^161167766029 is an apocalyptic number.

It is an amenable number.

161167766029 is a deficient number, since it is larger than the sum of its proper divisors (1).

161167766029 is an equidigital number, since it uses as much as digits as its factorization.

161167766029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 161167766029 in words is "one hundred sixty-one billion, one hundred sixty-seven million, seven hundred sixty-six thousand, twenty-nine".