515056665011 has 32 divisors (see below), whose sum is σ = 640060439040. Its totient is φ = 404378666496.

The previous prime is 515056665007. The next prime is 515056665031. The reversal of 515056665011 is 110566650515.

It is not a de Polignac number, because 515056665011 - 2² = 515056665007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 515056665011.

It is not an unprimeable number, because it can be changed into a prime (515056665001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1235720 + ... + 1599098.

It is an arithmetic number, because the mean of its divisors is an integer number (20001888720).

Almost surely, 2^515056665011 is an apocalyptic number.

515056665011 is a deficient number, since it is larger than the sum of its proper divisors (125003774029).

515056665011 is a wasteful number, since it uses less digits than its factorization.

515056665011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363723.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 515056665011 in words is "five hundred fifteen billion, fifty-six million, six hundred sixty-five thousand, eleven".