655066969 has 2 divisors, whose sum is σ = 655066970. Its totient is φ = 655066968.

The previous prime is 655066939. The next prime is 655067057. The reversal of 655066969 is 969660556.

It is a happy number.

655066969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392238025 + 262828944 = 19805^2 + 16212^2 .

It is a cyclic number.

It is not a de Polignac number, because 655066969 - 2¹³ = 655058777 is a prime.

It is a super-2 number, since 2×655066969² = 858225467749693922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (655066939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327533484 + 327533485.

It is an arithmetic number, because the mean of its divisors is an integer number (327533485).

Almost surely, 2^655066969 is an apocalyptic number.

It is an amenable number.

655066969 is a deficient number, since it is larger than the sum of its proper divisors (1).

655066969 is an equidigital number, since it uses as much as digits as its factorization.

655066969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The square root of 655066969 is about 25594.2760983779. The cubic root of 655066969 is about 868.4841569900.

The spelling of 655066969 in words is "six hundred fifty-five million, sixty-six thousand, nine hundred sixty-nine".