220747672771 has 2 divisors, whose sum is σ = 220747672772. Its totient is φ = 220747672770.

The previous prime is 220747672759. The next prime is 220747672799. The reversal of 220747672771 is 177276747022.

It is a happy number.

220747672771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220747672771 - 2²⁷ = 220613455043 is a prime.

It is not a weakly prime, because it can be changed into another prime (220747672751) 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, 110373836385 + 110373836386.

It is an arithmetic number, because the mean of its divisors is an integer number (110373836386).

Almost surely, 2^220747672771 is an apocalyptic number.

220747672771 is a deficient number, since it is larger than the sum of its proper divisors (1).

220747672771 is an equidigital number, since it uses as much as digits as its factorization.

220747672771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3226944, while the sum is 52.

The spelling of 220747672771 in words is "two hundred twenty billion, seven hundred forty-seven million, six hundred seventy-two thousand, seven hundred seventy-one".