660505050943 has 2 divisors, whose sum is σ = 660505050944. Its totient is φ = 660505050942.

The previous prime is 660505050929. The next prime is 660505050949. The reversal of 660505050943 is 349050505066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660505050943 - 2¹³ = 660505042751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 660505050943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660505050949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330252525471 + 330252525472.

It is an arithmetic number, because the mean of its divisors is an integer number (330252525472).

Almost surely, 2^660505050943 is an apocalyptic number.

660505050943 is a deficient number, since it is larger than the sum of its proper divisors (1).

660505050943 is an equidigital number, since it uses as much as digits as its factorization.

660505050943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 660505050943 in words is "six hundred sixty billion, five hundred five million, fifty thousand, nine hundred forty-three".