1855216704 has 112 divisors (see below), whose sum is σ = 5499786816. Its totient is φ = 546969600.

The previous prime is 1855216691. The next prime is 1855216763. The reversal of 1855216704 is 4076125581.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66274 + ... + 90014.

Almost surely, 2^1855216704 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 1855216704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2749893408).

1855216704 is an abundant number, since it is smaller than the sum of its proper divisors (3644570112).

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

1855216704 is a wasteful number, since it uses less digits than its factorization.

1855216704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23804 (or 23794 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1855216704 is about 43072.2265967294. The cubic root of 1855216704 is about 1228.7538227954.

The spelling of 1855216704 in words is "one billion, eight hundred fifty-five million, two hundred sixteen thousand, seven hundred four".