51660303833 has 2 divisors, whose sum is σ = 51660303834. Its totient is φ = 51660303832.

The previous prime is 51660303781. The next prime is 51660303899. The reversal of 51660303833 is 33830306615.

51660303833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51625292944 + 35010889 = 227212^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 51660303833 - 2¹⁴ = 51660287449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51660503833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25830151916 + 25830151917.

It is an arithmetic number, because the mean of its divisors is an integer number (25830151917).

Almost surely, 2^51660303833 is an apocalyptic number.

It is an amenable number.

51660303833 is a deficient number, since it is larger than the sum of its proper divisors (1).

51660303833 is an equidigital number, since it uses as much as digits as its factorization.

51660303833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 51660303833 in words is "fifty-one billion, six hundred sixty million, three hundred three thousand, eight hundred thirty-three".