51611562130199 has 2 divisors, whose sum is σ = 51611562130200. Its totient is φ = 51611562130198.

The previous prime is 51611562130151. The next prime is 51611562130223. The reversal of 51611562130199 is 99103126511615.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51611562130199 - 2²⁸ = 51611293694743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51611562130399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805781065099 + 25805781065100.

It is an arithmetic number, because the mean of its divisors is an integer number (25805781065100).

Almost surely, 2^{51611562130199} is an apocalyptic number.

51611562130199 is a deficient number, since it is larger than the sum of its proper divisors (1).

51611562130199 is an equidigital number, since it uses as much as digits as its factorization.

51611562130199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 50.

The spelling of 51611562130199 in words is "fifty-one trillion, six hundred eleven billion, five hundred sixty-two million, one hundred thirty thousand, one hundred ninety-nine".