51660061510011 has 16 divisors (see below), whose sum is σ = 69931540005120. Its totient is φ = 33915441399840.

The previous prime is 51660061509997. The next prime is 51660061510051. The reversal of 51660061510011 is 11001516006615.

It is not a de Polignac number, because 51660061510011 - 2¹⁴ = 51660061493627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51660061510051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140990200 + ... + 141356133.

It is an arithmetic number, because the mean of its divisors is an integer number (4370721250320).

Almost surely, 2^{51660061510011} is an apocalyptic number.

51660061510011 is a deficient number, since it is larger than the sum of its proper divisors (18271478495109).

51660061510011 is a wasteful number, since it uses less digits than its factorization.

51660061510011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282347266.

The product of its (nonzero) digits is 5400, while the sum is 33.

Adding to 51660061510011 its reverse (11001516006615), we get a palindrome (62661577516626).

The spelling of 51660061510011 in words is "fifty-one trillion, six hundred sixty billion, sixty-one million, five hundred ten thousand, eleven".