855680071840 has 96 divisors (see below), whose sum is σ = 2213459861760. Its totient is φ = 310008038400.

The previous prime is 855680071823. The next prime is 855680071849. The reversal of 855680071840 is 48170086558.

It is not an unprimeable number, because it can be changed into a prime (855680071849) 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, 420055 + ... + 1373974.

It is an arithmetic number, because the mean of its divisors is an integer number (23056873560).

Almost surely, 2^855680071840 is an apocalyptic number.

855680071840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

855680071840 is an abundant number, since it is smaller than the sum of its proper divisors (1357779789920).

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

855680071840 is a wasteful number, since it uses less digits than its factorization.

855680071840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794326 (or 1794318 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 855680071840 in words is "eight hundred fifty-five billion, six hundred eighty million, seventy-one thousand, eight hundred forty".