1800555010105 has 16 divisors (see below), whose sum is σ = 2165971207680. Its totient is φ = 1436909421568.

The previous prime is 1800555010091. The next prime is 1800555010129. The reversal of 1800555010105 is 5010105550081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1800555010105 - 2⁵ = 1800555010073 is a prime.

It is a super-2 number, since 2×1800555010105² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 6456894 + ... + 6729976.

It is an arithmetic number, because the mean of its divisors is an integer number (135373200480).

Almost surely, 2^{1800555010105} is an apocalyptic number.

It is an amenable number.

1800555010105 is a deficient number, since it is larger than the sum of its proper divisors (365416197575).

1800555010105 is a wasteful number, since it uses less digits than its factorization.

1800555010105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276320.

The product of its (nonzero) digits is 5000, while the sum is 31.

The spelling of 1800555010105 in words is "one trillion, eight hundred billion, five hundred fifty-five million, ten thousand, one hundred five".