65166077 has 2 divisors, whose sum is σ = 65166078. Its totient is φ = 65166076.

The previous prime is 65166071. The next prime is 65166131. The reversal of 65166077 is 77066156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33570436 + 31595641 = 5794^2 + 5621^2 .

It is a cyclic number.

It is not a de Polignac number, because 65166077 - 2¹⁰ = 65165053 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65166077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65166071) 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, 32583038 + 32583039.

It is an arithmetic number, because the mean of its divisors is an integer number (32583039).

Almost surely, 2^65166077 is an apocalyptic number.

It is an amenable number.

65166077 is a deficient number, since it is larger than the sum of its proper divisors (1).

65166077 is an equidigital number, since it uses as much as digits as its factorization.

65166077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 65166077 is about 8072.5508360121. The cubic root of 65166077 is about 402.4147205617.

The spelling of 65166077 in words is "sixty-five million, one hundred sixty-six thousand, seventy-seven".