51666545211033 has 32 divisors (see below), whose sum is σ = 73721930711040. Its totient is φ = 32114320096320.

The previous prime is 51666545210993. The next prime is 51666545211041. The reversal of 51666545211033 is 33011254566615.

It is not a de Polignac number, because 51666545211033 - 2³⁷ = 51529106257561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51666545211053) 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, 19439241 + ... + 21936662.

It is an arithmetic number, because the mean of its divisors is an integer number (2303810334720).

Almost surely, 2^{51666545211033} is an apocalyptic number.

It is an amenable number.

51666545211033 is a deficient number, since it is larger than the sum of its proper divisors (22055385500007).

51666545211033 is a wasteful number, since it uses less digits than its factorization.

51666545211033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41376429.

The product of its (nonzero) digits is 1944000, while the sum is 48.

Adding to 51666545211033 its reverse (33011254566615), we get a palindrome (84677799777648).

The spelling of 51666545211033 in words is "fifty-one trillion, six hundred sixty-six billion, five hundred forty-five million, two hundred eleven thousand, thirty-three".