655002665749 has 2 divisors, whose sum is σ = 655002665750. Its totient is φ = 655002665748.

The previous prime is 655002665731. The next prime is 655002665771. The reversal of 655002665749 is 947566200556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 653216335524 + 1786330225 = 808218^2 + 42265^2 .

It is a cyclic number.

It is not a de Polignac number, because 655002665749 - 2¹³ = 655002657557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655002665749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655002365749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327501332874 + 327501332875.

It is an arithmetic number, because the mean of its divisors is an integer number (327501332875).

Almost surely, 2^655002665749 is an apocalyptic number.

It is an amenable number.

655002665749 is a deficient number, since it is larger than the sum of its proper divisors (1).

655002665749 is an equidigital number, since it uses as much as digits as its factorization.

655002665749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 655002665749 in words is "six hundred fifty-five billion, two million, six hundred sixty-five thousand, seven hundred forty-nine".