515340664471 has 2 divisors, whose sum is σ = 515340664472. Its totient is φ = 515340664470.

The previous prime is 515340664403. The next prime is 515340664513. The reversal of 515340664471 is 174466043515.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 515340664471 - 2¹¹ = 515340662423 is a prime.

It is a super-3 number, since 3×515340664471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515340664171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257670332235 + 257670332236.

It is an arithmetic number, because the mean of its divisors is an integer number (257670332236).

Almost surely, 2^515340664471 is an apocalyptic number.

515340664471 is a deficient number, since it is larger than the sum of its proper divisors (1).

515340664471 is an equidigital number, since it uses as much as digits as its factorization.

515340664471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 515340664471 in words is "five hundred fifteen billion, three hundred forty million, six hundred sixty-four thousand, four hundred seventy-one".