215366312042 has 48 divisors (see below), whose sum is σ = 377935800480. Its totient is φ = 91774216800.

The previous prime is 215366312033. The next prime is 215366312093. The reversal of 215366312042 is 240213663512.

It is a super-2 number, since 2×215366312042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215366311993 and 215366312011.

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, 24416309 + ... + 24425127.

It is an arithmetic number, because the mean of its divisors is an integer number (7873662510).

Almost surely, 2^215366312042 is an apocalyptic number.

215366312042 is a deficient number, since it is larger than the sum of its proper divisors (162569488438).

215366312042 is a wasteful number, since it uses less digits than its factorization.

215366312042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227 (or 10220 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 215366312042 its reverse (240213663512), we get a palindrome (455579975554).

The spelling of 215366312042 in words is "two hundred fifteen billion, three hundred sixty-six million, three hundred twelve thousand, forty-two".