32121640188641 has 2 divisors, whose sum is σ = 32121640188642. Its totient is φ = 32121640188640.

The previous prime is 32121640188637. The next prime is 32121640188679. The reversal of 32121640188641 is 14688104612123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30629140609600 + 1492499579041 = 5534360^2 + 1221679^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121640188641 - 2² = 32121640188637 is a prime.

It is not a weakly prime, because it can be changed into another prime (32121640188611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060820094320 + 16060820094321.

It is an arithmetic number, because the mean of its divisors is an integer number (16060820094321).

Almost surely, 2^{32121640188641} is an apocalyptic number.

It is an amenable number.

32121640188641 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121640188641 is an equidigital number, since it uses as much as digits as its factorization.

32121640188641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 32121640188641 in words is "thirty-two trillion, one hundred twenty-one billion, six hundred forty million, one hundred eighty-eight thousand, six hundred forty-one".