160662661 has 2 divisors, whose sum is σ = 160662662. Its totient is φ = 160662660.

The previous prime is 160662643. The next prime is 160662683. The reversal of 160662661 is 166266061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91872225 + 68790436 = 9585^2 + 8294^2 .

It is a cyclic number.

It is not a de Polignac number, because 160662661 - 2⁵ = 160662629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160662611) 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, 80331330 + 80331331.

It is an arithmetic number, because the mean of its divisors is an integer number (80331331).

Almost surely, 2^160662661 is an apocalyptic number.

It is an amenable number.

160662661 is a deficient number, since it is larger than the sum of its proper divisors (1).

160662661 is an equidigital number, since it uses as much as digits as its factorization.

160662661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 160662661 is about 12675.2775512018. The cubic root of 160662661 is about 543.6319654660.

The spelling of 160662661 in words is "one hundred sixty million, six hundred sixty-two thousand, six hundred sixty-one".