20624521063 has 2 divisors, whose sum is σ = 20624521064. Its totient is φ = 20624521062.

The previous prime is 20624521007. The next prime is 20624521081. The reversal of 20624521063 is 36012542602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20624521063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20624521163) 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, 10312260531 + 10312260532.

It is an arithmetic number, because the mean of its divisors is an integer number (10312260532).

Almost surely, 2^20624521063 is an apocalyptic number.

20624521063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20624521063 is an equidigital number, since it uses as much as digits as its factorization.

20624521063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20624521063 in words is "twenty billion, six hundred twenty-four million, five hundred twenty-one thousand, sixty-three".