515056616647 has 2 divisors, whose sum is σ = 515056616648. Its totient is φ = 515056616646.

The previous prime is 515056616587. The next prime is 515056616687. The reversal of 515056616647 is 746616650515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 515056616647 - 2⁷ = 515056616519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515056616594 and 515056616603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515056616687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257528308323 + 257528308324.

It is an arithmetic number, because the mean of its divisors is an integer number (257528308324).

Almost surely, 2^515056616647 is an apocalyptic number.

515056616647 is a deficient number, since it is larger than the sum of its proper divisors (1).

515056616647 is an equidigital number, since it uses as much as digits as its factorization.

515056616647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 515056616647 in words is "five hundred fifteen billion, fifty-six million, six hundred sixteen thousand, six hundred forty-seven".