1803656152344 has 128 divisors (see below), whose sum is σ = 4972291200000. Its totient is φ = 542973570048.

The previous prime is 1803656152327. The next prime is 1803656152351. The reversal of 1803656152344 is 4432516563081.

It is a junction number, because it is equal to n+sod(n) for n = 1803656152293 and 1803656152302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181452 + ... + 1907940.

It is an arithmetic number, because the mean of its divisors is an integer number (38846025000).

Almost surely, 2^{1803656152344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1803656152344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2486145600000).

1803656152344 is an abundant number, since it is smaller than the sum of its proper divisors (3168635047656).

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

1803656152344 is a wasteful number, since it uses less digits than its factorization.

1803656152344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726625 (or 1726621 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 1803656152344 in words is "one trillion, eight hundred three billion, six hundred fifty-six million, one hundred fifty-two thousand, three hundred forty-four".