220747943641 has 2 divisors, whose sum is σ = 220747943642. Its totient is φ = 220747943640.

The previous prime is 220747943639. The next prime is 220747943659. The reversal of 220747943641 is 146349747022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144886809600 + 75861134041 = 380640^2 + 275429^2 .

It is a cyclic number.

It is not a de Polignac number, because 220747943641 - 2¹ = 220747943639 is a prime.

It is a super-2 number, since 2×220747943641² (a number of 23 digits) contains 22 as substring.

Together with 220747943639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220747943621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110373971820 + 110373971821.

It is an arithmetic number, because the mean of its divisors is an integer number (110373971821).

Almost surely, 2^220747943641 is an apocalyptic number.

It is an amenable number.

220747943641 is a deficient number, since it is larger than the sum of its proper divisors (1).

220747943641 is an equidigital number, since it uses as much as digits as its factorization.

220747943641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 220747943641 in words is "two hundred twenty billion, seven hundred forty-seven million, nine hundred forty-three thousand, six hundred forty-one".