285650064000 has 1920 divisors, whose sum is σ = 1300305726720. Its totient is φ = 60764774400.

The previous prime is 285650063999. The next prime is 285650064047. The reversal of 285650064000 is 460056582.

285650064000 is a `hidden beast` number, since 2 + 8 + 5 + 6 + 5 + 0 + 0 + 640 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 7720271982 + ... + 7720272018.

It is an arithmetic number, because the mean of its divisors is an integer number (677242566).

Almost surely, 2^285650064000 is an apocalyptic number.

285650064000 is a gapful number since it is divisible by the number (20) 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 285650064000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650152863360).

285650064000 is an abundant number, since it is smaller than the sum of its proper divisors (1014655662720).

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

285650064000 is an equidigital number, since it uses as much as digits as its factorization.

285650064000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 285650064000 in words is "two hundred eighty-five billion, six hundred fifty million, sixty-four thousand".