160577561 has 2 divisors, whose sum is σ = 160577562. Its totient is φ = 160577560.

The previous prime is 160577539. The next prime is 160577567. The reversal of 160577561 is 165775061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160174336 + 403225 = 12656^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 160577561 - 2⁶ = 160577497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (160577567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80288780 + 80288781.

It is an arithmetic number, because the mean of its divisors is an integer number (80288781).

Almost surely, 2^160577561 is an apocalyptic number.

It is an amenable number.

160577561 is a deficient number, since it is larger than the sum of its proper divisors (1).

160577561 is an equidigital number, since it uses as much as digits as its factorization.

160577561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 160577561 is about 12671.9201780946. The cubic root of 160577561 is about 543.5359646267.

The spelling of 160577561 in words is "one hundred sixty million, five hundred seventy-seven thousand, five hundred sixty-one".