252420163244 has 12 divisors (see below), whose sum is σ = 441963822384. Its totient is φ = 126144785424.

The previous prime is 252420163223. The next prime is 252420163253. The reversal of 252420163244 is 442361024252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16315352 + ... + 16330815.

It is an arithmetic number, because the mean of its divisors is an integer number (36830318532).

Almost surely, 2^252420163244 is an apocalyptic number.

It is an amenable number.

252420163244 is a deficient number, since it is larger than the sum of its proper divisors (189543659140).

252420163244 is a wasteful number, since it uses less digits than its factorization.

252420163244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32648104 (or 32648102 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 252420163244 its reverse (442361024252), we get a palindrome (694781187496).

The spelling of 252420163244 in words is "two hundred fifty-two billion, four hundred twenty million, one hundred sixty-three thousand, two hundred forty-four".