655011061669 has 2 divisors, whose sum is σ = 655011061670. Its totient is φ = 655011061668.

The previous prime is 655011061643. The next prime is 655011061693. The reversal of 655011061669 is 966160110556.

655011061669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417008560644 + 238002501025 = 645762^2 + 487855^2 .

It is a cyclic number.

It is not a de Polignac number, because 655011061669 - 2²⁹ = 654474190757 is a prime.

It is a super-2 number, since 2×655011061669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655011061169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327505530834 + 327505530835.

It is an arithmetic number, because the mean of its divisors is an integer number (327505530835).

Almost surely, 2^655011061669 is an apocalyptic number.

It is an amenable number.

655011061669 is a deficient number, since it is larger than the sum of its proper divisors (1).

655011061669 is an equidigital number, since it uses as much as digits as its factorization.

655011061669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 655011061669 in words is "six hundred fifty-five billion, eleven million, sixty-one thousand, six hundred sixty-nine".