66160487 has 2 divisors, whose sum is σ = 66160488. Its totient is φ = 66160486.

The previous prime is 66160459. The next prime is 66160573. The reversal of 66160487 is 78406166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66160487 - 2¹⁴ = 66144103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66160487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66160987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33080243 + 33080244.

It is an arithmetic number, because the mean of its divisors is an integer number (33080244).

Almost surely, 2^66160487 is an apocalyptic number.

66160487 is a deficient number, since it is larger than the sum of its proper divisors (1).

66160487 is an equidigital number, since it uses as much as digits as its factorization.

66160487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 66160487 is about 8133.9096995233. The cubic root of 66160487 is about 404.4512957525.

The spelling of 66160487 in words is "sixty-six million, one hundred sixty thousand, four hundred eighty-seven".