51660820552711 has 2 divisors, whose sum is σ = 51660820552712. Its totient is φ = 51660820552710.

The previous prime is 51660820552687. The next prime is 51660820552793. The reversal of 51660820552711 is 11725502806615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51660820552711 - 2¹³ = 51660820544519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51660820562711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25830410276355 + 25830410276356.

It is an arithmetic number, because the mean of its divisors is an integer number (25830410276356).

Almost surely, 2^{51660820552711} is an apocalyptic number.

51660820552711 is a deficient number, since it is larger than the sum of its proper divisors (1).

51660820552711 is an equidigital number, since it uses as much as digits as its factorization.

51660820552711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 51660820552711 in words is "fifty-one trillion, six hundred sixty billion, eight hundred twenty million, five hundred fifty-two thousand, seven hundred eleven".