20224315443977 has 2 divisors, whose sum is σ = 20224315443978. Its totient is φ = 20224315443976.

The previous prime is 20224315443961. The next prime is 20224315443989. The reversal of 20224315443977 is 77934451342202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15070071516361 + 5154243927616 = 3882019^2 + 2270296^2 .

It is a cyclic number.

It is not a de Polignac number, because 20224315443977 - 2⁴ = 20224315443961 is a prime.

It is not a weakly prime, because it can be changed into another prime (20224315446977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112157721988 + 10112157721989.

It is an arithmetic number, because the mean of its divisors is an integer number (10112157721989).

Almost surely, 2^{20224315443977} is an apocalyptic number.

It is an amenable number.

20224315443977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224315443977 is an equidigital number, since it uses as much as digits as its factorization.

20224315443977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 20224315443977 in words is "twenty trillion, two hundred twenty-four billion, three hundred fifteen million, four hundred forty-three thousand, nine hundred seventy-seven".