212066585808 has 480 divisors, whose sum is σ = 710177974272. Its totient is φ = 52956134400.

The previous prime is 212066585789. The next prime is 212066585821. The reversal of 212066585808 is 808585660212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 681885973 + ... + 681886283.

Almost surely, 2^212066585808 is an apocalyptic number.

212066585808 is a gapful number since it is divisible by the number (28) 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 212066585808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355088987136).

212066585808 is an abundant number, since it is smaller than the sum of its proper divisors (498111388464).

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

212066585808 is a wasteful number, since it uses less digits than its factorization.

212066585808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 212066585808 in words is "two hundred twelve billion, sixty-six million, five hundred eighty-five thousand, eight hundred eight".