1660142593 has 2 divisors, whose sum is σ = 1660142594. Its totient is φ = 1660142592.

The previous prime is 1660142513. The next prime is 1660142611. The reversal of 1660142593 is 3952410661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1659992049 + 150544 = 40743^2 + 388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660142593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1660142513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830071296 + 830071297.

It is an arithmetic number, because the mean of its divisors is an integer number (830071297).

Almost surely, 2^1660142593 is an apocalyptic number.

It is an amenable number.

1660142593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660142593 is an equidigital number, since it uses as much as digits as its factorization.

1660142593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1660142593 is about 40744.8474411182. The cubic root of 1660142593 is about 1184.0820495797.

The spelling of 1660142593 in words is "one billion, six hundred sixty million, one hundred forty-two thousand, five hundred ninety-three".