32021802405991 has 2 divisors, whose sum is σ = 32021802405992. Its totient is φ = 32021802405990.

The previous prime is 32021802405953. The next prime is 32021802406001. The reversal of 32021802405991 is 19950420812023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32021802405991 - 2³⁷ = 31884363452519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32021802405941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010901202995 + 16010901202996.

It is an arithmetic number, because the mean of its divisors is an integer number (16010901202996).

Almost surely, 2^{32021802405991} is an apocalyptic number.

32021802405991 is a deficient number, since it is larger than the sum of its proper divisors (1).

32021802405991 is an equidigital number, since it uses as much as digits as its factorization.

32021802405991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 32021802405991 in words is "thirty-two trillion, twenty-one billion, eight hundred two million, four hundred five thousand, nine hundred ninety-one".