210061652112 has 120 divisors (see below), whose sum is σ = 633705174648. Its totient is φ = 64572825600.

The previous prime is 210061652111. The next prime is 210061652123. The reversal of 210061652112 is 211256160012.

210061652112 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 6 + 1 + 652 + 1 + 1 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 557715456 + 209503936656 = 23616^2 + 457716^2 .

It is not an unprimeable number, because it can be changed into a prime (210061652111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1933312 + ... + 2039072.

Almost surely, 2^210061652112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210061652112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316852587324).

210061652112 is an abundant number, since it is smaller than the sum of its proper divisors (423643522536).

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

210061652112 is a wasteful number, since it uses less digits than its factorization.

210061652112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106849 (or 106840 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 210061652112 in words is "two hundred ten billion, sixty-one million, six hundred fifty-two thousand, one hundred twelve".