20332216523887 has 2 divisors, whose sum is σ = 20332216523888. Its totient is φ = 20332216523886.

The previous prime is 20332216523867. The next prime is 20332216523903. The reversal of 20332216523887 is 78832561223302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332216523887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332216523867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166108261943 + 10166108261944.

It is an arithmetic number, because the mean of its divisors is an integer number (10166108261944).

Almost surely, 2^{20332216523887} is an apocalyptic number.

20332216523887 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332216523887 is an equidigital number, since it uses as much as digits as its factorization.

20332216523887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 20332216523887 in words is "twenty trillion, three hundred thirty-two billion, two hundred sixteen million, five hundred twenty-three thousand, eight hundred eighty-seven".