252266639212 has 144 divisors (see below), whose sum is σ = 540773658880. Its totient is φ = 100785855744.

The previous prime is 252266639201. The next prime is 252266639221. The reversal of 252266639212 is 212936662252.

It is a super-3 number, since 3×252266639212³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121106323 + ... + 121108405.

Almost surely, 2^252266639212 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 252266639212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270386829440).

252266639212 is an abundant number, since it is smaller than the sum of its proper divisors (288507019668).

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

252266639212 is a wasteful number, since it uses less digits than its factorization.

252266639212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2297 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The spelling of 252266639212 in words is "two hundred fifty-two billion, two hundred sixty-six million, six hundred thirty-nine thousand, two hundred twelve".