20362255009 has 2 divisors, whose sum is σ = 20362255010. Its totient is φ = 20362255008.

The previous prime is 20362255007. The next prime is 20362255093. The reversal of 20362255009 is 90055226302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19471411600 + 890843409 = 139540^2 + 29847^2 .

It is a cyclic number.

It is not a de Polignac number, because 20362255009 - 2¹ = 20362255007 is a prime.

Together with 20362255007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20362255007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181127504 + 10181127505.

It is an arithmetic number, because the mean of its divisors is an integer number (10181127505).

Almost surely, 2^20362255009 is an apocalyptic number.

It is an amenable number.

20362255009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20362255009 is an equidigital number, since it uses as much as digits as its factorization.

20362255009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 20362255009 in words is "twenty billion, three hundred sixty-two million, two hundred fifty-five thousand, nine".