518149665511 has 2 divisors, whose sum is σ = 518149665512. Its totient is φ = 518149665510.

The previous prime is 518149665493. The next prime is 518149665557. The reversal of 518149665511 is 115566941815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 518149665511 - 2⁹ = 518149664999 is a prime.

It is a super-2 number, since 2×518149665511² (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 (518149666511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259074832755 + 259074832756.

It is an arithmetic number, because the mean of its divisors is an integer number (259074832756).

Almost surely, 2^518149665511 is an apocalyptic number.

518149665511 is a deficient number, since it is larger than the sum of its proper divisors (1).

518149665511 is an equidigital number, since it uses as much as digits as its factorization.

518149665511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 52.

The spelling of 518149665511 in words is "five hundred eighteen billion, one hundred forty-nine million, six hundred sixty-five thousand, five hundred eleven".