51660892015429 has 2 divisors, whose sum is σ = 51660892015430. Its totient is φ = 51660892015428.

The previous prime is 51660892015367. The next prime is 51660892015433. The reversal of 51660892015429 is 92451029806615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44052822072900 + 7608069942529 = 6637230^2 + 2758273^2 .

It is a cyclic number.

It is not a de Polignac number, because 51660892015429 - 2¹⁹ = 51660891491141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51660892015459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25830446007714 + 25830446007715.

It is an arithmetic number, because the mean of its divisors is an integer number (25830446007715).

Almost surely, 2^{51660892015429} is an apocalyptic number.

It is an amenable number.

51660892015429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51660892015429 is an equidigital number, since it uses as much as digits as its factorization.

51660892015429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 51660892015429 in words is "fifty-one trillion, six hundred sixty billion, eight hundred ninety-two million, fifteen thousand, four hundred twenty-nine".