669062296961 has 2 divisors, whose sum is σ = 669062296962. Its totient is φ = 669062296960.

The previous prime is 669062296939. The next prime is 669062296963. The reversal of 669062296961 is 169692260966.

669062296961 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., 503327815936 + 165734481025 = 709456^2 + 407105^2 .

It is a cyclic number.

It is not a de Polignac number, because 669062296961 - 2¹⁴ = 669062280577 is a prime.

It is a super-3 number, since 3×669062296961³ (a number of 36 digits) contains 333 as substring.

Together with 669062296963, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 669062296894 and 669062296903.

It is not a weakly prime, because it can be changed into another prime (669062296963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334531148480 + 334531148481.

It is an arithmetic number, because the mean of its divisors is an integer number (334531148481).

Almost surely, 2^669062296961 is an apocalyptic number.

It is an amenable number.

669062296961 is a deficient number, since it is larger than the sum of its proper divisors (1).

669062296961 is an equidigital number, since it uses as much as digits as its factorization.

669062296961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22674816, while the sum is 62.

The spelling of 669062296961 in words is "six hundred sixty-nine billion, sixty-two million, two hundred ninety-six thousand, nine hundred sixty-one".