51651166511159 has 2 divisors, whose sum is σ = 51651166511160. Its totient is φ = 51651166511158.

The previous prime is 51651166511137. The next prime is 51651166511179. The reversal of 51651166511159 is 95111566115615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51651166511159 - 2¹⁶ = 51651166445623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51651166511159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51651166511179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25825583255579 + 25825583255580.

It is an arithmetic number, because the mean of its divisors is an integer number (25825583255580).

Almost surely, 2^{51651166511159} is an apocalyptic number.

51651166511159 is a deficient number, since it is larger than the sum of its proper divisors (1).

51651166511159 is an equidigital number, since it uses as much as digits as its factorization.

51651166511159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1215000, while the sum is 53.

The spelling of 51651166511159 in words is "fifty-one trillion, six hundred fifty-one billion, one hundred sixty-six million, five hundred eleven thousand, one hundred fifty-nine".