1855160128 has 112 divisors (see below), whose sum is σ = 4009461120. Its totient is φ = 849305600.

The previous prime is 1855160123. The next prime is 1855160129. The reversal of 1855160128 is 8210615581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1855160123) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3560508 + ... + 3561028.

It is an arithmetic number, because the mean of its divisors is an integer number (35798760).

Almost surely, 2^1855160128 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 1855160128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004730560).

1855160128 is an abundant number, since it is smaller than the sum of its proper divisors (2154300992).

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

1855160128 is a wasteful number, since it uses less digits than its factorization.

1855160128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 37.

The square root of 1855160128 is about 43071.5698344047. The cubic root of 1855160128 is about 1228.7413321283.

The spelling of 1855160128 in words is "one billion, eight hundred fifty-five million, one hundred sixty thousand, one hundred twenty-eight".