663145105027 has 2 divisors, whose sum is σ = 663145105028. Its totient is φ = 663145105026.

The previous prime is 663145105001. The next prime is 663145105039. The reversal of 663145105027 is 720501541366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663145105027 - 2³⁵ = 628785366659 is a prime.

It is a super-2 number, since 2×663145105027² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (663145105067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331572552513 + 331572552514.

It is an arithmetic number, because the mean of its divisors is an integer number (331572552514).

Almost surely, 2^663145105027 is an apocalyptic number.

663145105027 is a deficient number, since it is larger than the sum of its proper divisors (1).

663145105027 is an equidigital number, since it uses as much as digits as its factorization.

663145105027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 663145105027 in words is "six hundred sixty-three billion, one hundred forty-five million, one hundred five thousand, twenty-seven".