856101384585 has 24 divisors (see below), whose sum is σ = 1486260794304. Its totient is φ = 455863796640.

The previous prime is 856101384557. The next prime is 856101384601. The reversal of 856101384585 is 585483101658.

856101384585 is a `hidden beast` number, since 8 + 5 + 610 + 13 + 8 + 4 + 5 + 8 + 5 = 666.

It is not a de Polignac number, because 856101384585 - 2¹⁴ = 856101368201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15046467 + ... + 15103256.

It is an arithmetic number, because the mean of its divisors is an integer number (61927533096).

Almost surely, 2^856101384585 is an apocalyptic number.

It is an amenable number.

856101384585 is a deficient number, since it is larger than the sum of its proper divisors (630159409719).

856101384585 is a wasteful number, since it uses less digits than its factorization.

856101384585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30150365 (or 30150362 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 856101384585 in words is "eight hundred fifty-six billion, one hundred one million, three hundred eighty-four thousand, five hundred eighty-five".