1855852049216 has 224 divisors, whose sum is σ = 4189804793856. Its totient is φ = 807985152000.

The previous prime is 1855852049209. The next prime is 1855852049267. The reversal of 1855852049216 is 6129402585581.

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, 1609584896 + ... + 1609586048.

Almost surely, 2^{1855852049216} is an apocalyptic number.

1855852049216 is a gapful number since it is divisible by the number (16) 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 1855852049216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094902396928).

1855852049216 is an abundant number, since it is smaller than the sum of its proper divisors (2333952744640).

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

1855852049216 is a wasteful number, since it uses less digits than its factorization.

1855852049216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 56.

The spelling of 1855852049216 in words is "one trillion, eight hundred fifty-five billion, eight hundred fifty-two million, forty-nine thousand, two hundred sixteen".