1866105119023 has 2 divisors, whose sum is σ = 1866105119024. Its totient is φ = 1866105119022.

The previous prime is 1866105118987. The next prime is 1866105119051. The reversal of 1866105119023 is 3209115016681.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1866105119023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1866105119083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 933052559511 + 933052559512.

It is an arithmetic number, because the mean of its divisors is an integer number (933052559512).

Almost surely, 2^{1866105119023} is an apocalyptic number.

1866105119023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1866105119023 is an equidigital number, since it uses as much as digits as its factorization.

1866105119023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 1866105119023 in words is "one trillion, eight hundred sixty-six billion, one hundred five million, one hundred nineteen thousand, twenty-three".