215506541350346 has 16 divisors (see below), whose sum is σ = 331150348267200. Its totient is φ = 105123189556320.

The previous prime is 215506541350343. The next prime is 215506541350369. The reversal of 215506541350346 is 643053145605512.

It is a super-2 number, since 2×215506541350346² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215506541350294 and 215506541350303.

It is not an unprimeable number, because it can be changed into a prime (215506541350343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19960406 + ... + 28799841.

It is an arithmetic number, because the mean of its divisors is an integer number (20696896766700).

Almost surely, 2^{215506541350346} is an apocalyptic number.

215506541350346 is a deficient number, since it is larger than the sum of its proper divisors (115643806916854).

215506541350346 is a wasteful number, since it uses less digits than its factorization.

215506541350346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48814189.

The product of its (nonzero) digits is 6480000, while the sum is 50.

Adding to 215506541350346 its reverse (643053145605512), we get a palindrome (858559686955858).

The spelling of 215506541350346 in words is "two hundred fifteen trillion, five hundred six billion, five hundred forty-one million, three hundred fifty thousand, three hundred forty-six".