252178028316 has 72 divisors (see below), whose sum is σ = 644430599904. Its totient is φ = 83140836480.

The previous prime is 252178028227. The next prime is 252178028329. The reversal of 252178028316 is 613820871252.

252178028316 is a `hidden beast` number, since 2 + 521 + 78 + 0 + 28 + 31 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3002850 + ... + 3085686.

Almost surely, 2^252178028316 is an apocalyptic number.

It is an amenable number.

252178028316 is an abundant number, since it is smaller than the sum of its proper divisors (392252571588).

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

252178028316 is a wasteful number, since it uses less digits than its factorization.

252178028316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83771 (or 83766 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

Adding to 252178028316 its reverse (613820871252), we get a palindrome (865998899568).

The spelling of 252178028316 in words is "two hundred fifty-two billion, one hundred seventy-eight million, twenty-eight thousand, three hundred sixteen".