215304502242152 has 16 divisors (see below), whose sum is σ = 412285217060160. Its totient is φ = 105361777692784.

The previous prime is 215304502242133. The next prime is 215304502242223. The reversal of 215304502242152 is 251242205403512.

It is a super-2 number, since 2×215304502242152² (a number of 29 digits) contains 22 as substring.

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, 286309178138 + ... + 286309178889.

It is an arithmetic number, because the mean of its divisors is an integer number (25767826066260).

Almost surely, 2^{215304502242152} is an apocalyptic number.

It is an amenable number.

215304502242152 is a deficient number, since it is larger than the sum of its proper divisors (196980714818008).

215304502242152 is a wasteful number, since it uses less digits than its factorization.

215304502242152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572618357080 (or 572618357076 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 215304502242152 its reverse (251242205403512), we get a palindrome (466546707645664).

The spelling of 215304502242152 in words is "two hundred fifteen trillion, three hundred four billion, five hundred two million, two hundred forty-two thousand, one hundred fifty-two".