1806105588672 has 672 divisors, whose sum is σ = 6450386814720. Its totient is φ = 439497031680.

The previous prime is 1806105588629. The next prime is 1806105588691. The reversal of 1806105588672 is 2768855016081.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 402876543 + ... + 402881025.

Almost surely, 2^{1806105588672} is an apocalyptic number.

1806105588672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1806105588672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225193407360).

1806105588672 is an abundant number, since it is smaller than the sum of its proper divisors (4644281226048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1806105588672 is a wasteful number, since it uses less digits than its factorization.

1806105588672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 1806105588672 in words is "one trillion, eight hundred six billion, one hundred five million, five hundred eighty-eight thousand, six hundred seventy-two".