669461148113 has 2 divisors, whose sum is σ = 669461148114. Its totient is φ = 669461148112.

The previous prime is 669461148089. The next prime is 669461148119. The reversal of 669461148113 is 311841164966.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663944669584 + 5516478529 = 814828^2 + 74273^2 .

It is a cyclic number.

It is not a de Polignac number, because 669461148113 - 2⁶ = 669461148049 is a prime.

It is a super-2 number, since 2×669461148113² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (669461148119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334730574056 + 334730574057.

It is an arithmetic number, because the mean of its divisors is an integer number (334730574057).

Almost surely, 2^669461148113 is an apocalyptic number.

It is an amenable number.

669461148113 is a deficient number, since it is larger than the sum of its proper divisors (1).

669461148113 is an equidigital number, since it uses as much as digits as its factorization.

669461148113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The spelling of 669461148113 in words is "six hundred sixty-nine billion, four hundred sixty-one million, one hundred forty-eight thousand, one hundred thirteen".