121632666053447 has 2 divisors, whose sum is σ = 121632666053448. Its totient is φ = 121632666053446.

The previous prime is 121632666053441. The next prime is 121632666053467. The reversal of 121632666053447 is 744350666236121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121632666053447 - 2²² = 121632661859143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121632666053392 and 121632666053401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121632666053441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60816333026723 + 60816333026724.

It is an arithmetic number, because the mean of its divisors is an integer number (60816333026724).

Almost surely, 2^{121632666053447} is an apocalyptic number.

121632666053447 is a deficient number, since it is larger than the sum of its proper divisors (1).

121632666053447 is an equidigital number, since it uses as much as digits as its factorization.

121632666053447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 121632666053447 in words is "one hundred twenty-one trillion, six hundred thirty-two billion, six hundred sixty-six million, fifty-three thousand, four hundred forty-seven".