60666161 has 2 divisors, whose sum is σ = 60666162. Its totient is φ = 60666160.

The previous prime is 60666127. The next prime is 60666181. The reversal of 60666161 is 16166606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35224225 + 25441936 = 5935^2 + 5044^2 .

It is a cyclic number.

It is not a de Polignac number, because 60666161 - 2⁶ = 60666097 is a prime.

It is a super-3 number, since 3×60666161³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (60666181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30333080 + 30333081.

It is an arithmetic number, because the mean of its divisors is an integer number (30333081).

Almost surely, 2^60666161 is an apocalyptic number.

It is an amenable number.

60666161 is a deficient number, since it is larger than the sum of its proper divisors (1).

60666161 is an equidigital number, since it uses as much as digits as its factorization.

60666161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 60666161 is about 7788.8485028276. The cubic root of 60666161 is about 392.9302860931.

The spelling of 60666161 in words is "sixty million, six hundred sixty-six thousand, one hundred sixty-one".