1662254253823 has 2 divisors, whose sum is σ = 1662254253824. Its totient is φ = 1662254253822.

The previous prime is 1662254253799. The next prime is 1662254253857. The reversal of 1662254253823 is 3283524522661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1662254253823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1662254253893) 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, 831127126911 + 831127126912.

It is an arithmetic number, because the mean of its divisors is an integer number (831127126912).

Almost surely, 2^{1662254253823} is an apocalyptic number.

1662254253823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662254253823 is an equidigital number, since it uses as much as digits as its factorization.

1662254253823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4147200, while the sum is 49.

The spelling of 1662254253823 in words is "one trillion, six hundred sixty-two billion, two hundred fifty-four million, two hundred fifty-three thousand, eight hundred twenty-three".