20732223671 has 2 divisors, whose sum is σ = 20732223672. Its totient is φ = 20732223670.

The previous prime is 20732223661. The next prime is 20732223719. The reversal of 20732223671 is 17632223702.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20732223671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20732223601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10366111835 + 10366111836.

It is an arithmetic number, because the mean of its divisors is an integer number (10366111836).

Almost surely, 2^20732223671 is an apocalyptic number.

20732223671 is a deficient number, since it is larger than the sum of its proper divisors (1).

20732223671 is an equidigital number, since it uses as much as digits as its factorization.

20732223671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 20732223671 in words is "twenty billion, seven hundred thirty-two million, two hundred twenty-three thousand, six hundred seventy-one".