1665200761463 has 2 divisors, whose sum is σ = 1665200761464. Its totient is φ = 1665200761462.

The previous prime is 1665200761451. The next prime is 1665200761531. The reversal of 1665200761463 is 3641670025661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1665200761463 - 2⁴ = 1665200761447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1665200761363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832600380731 + 832600380732.

It is an arithmetic number, because the mean of its divisors is an integer number (832600380732).

Almost surely, 2^{1665200761463} is an apocalyptic number.

1665200761463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1665200761463 is an equidigital number, since it uses as much as digits as its factorization.

1665200761463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 1665200761463 in words is "one trillion, six hundred sixty-five billion, two hundred million, seven hundred sixty-one thousand, four hundred sixty-three".