1800662248166 has 4 divisors (see below), whose sum is σ = 2700993372252. Its totient is φ = 900331124082.

The previous prime is 1800662248129. The next prime is 1800662248171. The reversal of 1800662248166 is 6618422660081.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450165562040 + ... + 450165562043.

It is an arithmetic number, because the mean of its divisors is an integer number (675248343063).

Almost surely, 2^{1800662248166} is an apocalyptic number.

1800662248166 is a deficient number, since it is larger than the sum of its proper divisors (900331124086).

1800662248166 is an equidigital number, since it uses as much as digits as its factorization.

1800662248166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900331124085.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 1800662248166 in words is "one trillion, eight hundred billion, six hundred sixty-two million, two hundred forty-eight thousand, one hundred sixty-six".