663050654243 has 2 divisors, whose sum is σ = 663050654244. Its totient is φ = 663050654242.

The previous prime is 663050654191. The next prime is 663050654249. The reversal of 663050654243 is 342456050366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663050654243 - 2²² = 663046459939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 663050654194 and 663050654203.

It is not a weakly prime, because it can be changed into another prime (663050654249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331525327121 + 331525327122.

It is an arithmetic number, because the mean of its divisors is an integer number (331525327122).

Almost surely, 2^663050654243 is an apocalyptic number.

663050654243 is a deficient number, since it is larger than the sum of its proper divisors (1).

663050654243 is an equidigital number, since it uses as much as digits as its factorization.

663050654243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 663050654243 in words is "six hundred sixty-three billion, fifty million, six hundred fifty-four thousand, two hundred forty-three".