505666061511 has 32 divisors (see below), whose sum is σ = 734088875520. Its totient is φ = 307759181184.

The previous prime is 505666061471. The next prime is 505666061513. The reversal of 505666061511 is 115160666505.

It is not a de Polignac number, because 505666061511 - 2¹⁷ = 505665930439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505666061513) 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, 2216566 + ... + 2434028.

It is an arithmetic number, because the mean of its divisors is an integer number (22940277360).

Almost surely, 2^505666061511 is an apocalyptic number.

505666061511 is a deficient number, since it is larger than the sum of its proper divisors (228422814009).

505666061511 is a wasteful number, since it uses less digits than its factorization.

505666061511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218135.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 505666061511 in words is "five hundred five billion, six hundred sixty-six million, sixty-one thousand, five hundred eleven".