1660716287983 has 2 divisors, whose sum is σ = 1660716287984. Its totient is φ = 1660716287982.

The previous prime is 1660716287941. The next prime is 1660716288059. The reversal of 1660716287983 is 3897826170661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1660716287983 - 2²¹ = 1660714190831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1660716287933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830358143991 + 830358143992.

It is an arithmetic number, because the mean of its divisors is an integer number (830358143992).

Almost surely, 2^{1660716287983} is an apocalyptic number.

1660716287983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660716287983 is an equidigital number, since it uses as much as digits as its factorization.

1660716287983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 1660716287983 in words is "one trillion, six hundred sixty billion, seven hundred sixteen million, two hundred eighty-seven thousand, nine hundred eighty-three".