215140030555430 has 32 divisors (see below), whose sum is σ = 391630165868160. Its totient is φ = 85085468771200.

The previous prime is 215140030555361. The next prime is 215140030555433. The reversal of 215140030555430 is 34555030041512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215140030555433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147403109 + ... + 148855488.

It is an arithmetic number, because the mean of its divisors is an integer number (12238442683380).

Almost surely, 2^{215140030555430} is an apocalyptic number.

215140030555430 is a deficient number, since it is larger than the sum of its proper divisors (176490135312730).

215140030555430 is a wasteful number, since it uses less digits than its factorization.

215140030555430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296259424.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 215140030555430 its reverse (34555030041512), we get a palindrome (249695060596942).

The spelling of 215140030555430 in words is "two hundred fifteen trillion, one hundred forty billion, thirty million, five hundred fifty-five thousand, four hundred thirty".