215550424135 has 16 divisors (see below), whose sum is σ = 274352664960. Its totient is φ = 162117465120.

The previous prime is 215550424127. The next prime is 215550424151. The reversal of 215550424135 is 531424055512.

It is not a de Polignac number, because 215550424135 - 2³ = 215550424127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215550424094 and 215550424103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8647677 + ... + 8672566.

It is an arithmetic number, because the mean of its divisors is an integer number (17147041560).

Almost surely, 2^215550424135 is an apocalyptic number.

215550424135 is a deficient number, since it is larger than the sum of its proper divisors (58802240825).

215550424135 is a wasteful number, since it uses less digits than its factorization.

215550424135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17320398.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 215550424135 its reverse (531424055512), we get a palindrome (746974479647).

The spelling of 215550424135 in words is "two hundred fifteen billion, five hundred fifty million, four hundred twenty-four thousand, one hundred thirty-five".