20457775267063 has 2 divisors, whose sum is σ = 20457775267064. Its totient is φ = 20457775267062.

The previous prime is 20457775267043. The next prime is 20457775267129. The reversal of 20457775267063 is 36076257775402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20457775267063 - 2¹³ = 20457775258871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20457775266992 and 20457775267010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20457775267003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10228887633531 + 10228887633532.

It is an arithmetic number, because the mean of its divisors is an integer number (10228887633532).

Almost surely, 2^{20457775267063} is an apocalyptic number.

20457775267063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20457775267063 is an equidigital number, since it uses as much as digits as its factorization.

20457775267063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103723200, while the sum is 61.

The spelling of 20457775267063 in words is "twenty trillion, four hundred fifty-seven billion, seven hundred seventy-five million, two hundred sixty-seven thousand, sixty-three".