1805122144366 has 4 divisors (see below), whose sum is σ = 2707683216552. Its totient is φ = 902561072182.

The previous prime is 1805122144351. The next prime is 1805122144387. The reversal of 1805122144366 is 6634412215081.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1805122144366² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451280536090 + ... + 451280536093.

It is an arithmetic number, because the mean of its divisors is an integer number (676920804138).

Almost surely, 2^{1805122144366} is an apocalyptic number.

1805122144366 is a deficient number, since it is larger than the sum of its proper divisors (902561072186).

1805122144366 is an equidigital number, since it uses as much as digits as its factorization.

1805122144366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902561072185.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 1805122144366 in words is "one trillion, eight hundred five billion, one hundred twenty-two million, one hundred forty-four thousand, three hundred sixty-six".