1660063 has 2 divisors, whose sum is σ = 1660064. Its totient is φ = 1660062.

The previous prime is 1660039. The next prime is 1660069. The reversal of 1660063 is 3600661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1660063 - 2⁹ = 1659551 is a prime.

1660063 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1660069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830031 + 830032.

It is an arithmetic number, because the mean of its divisors is an integer number (830032).

2^1660063 is an apocalyptic number.

1660063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660063 is an equidigital number, since it uses as much as digits as its factorization.

1660063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1660063 is about 1288.4343211821. The cubic root of 1660063 is about 118.4063126276.

The spelling of 1660063 in words is "one million, six hundred sixty thousand, sixty-three".