215255321413 has 8 divisors (see below), whose sum is σ = 237462459840. Its totient is φ = 193487928480.

The previous prime is 215255321399. The next prime is 215255321423. The reversal of 215255321413 is 314123552512.

215255321413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215255321413 - 2²¹ = 215253224261 is a prime.

It is a super-2 number, since 2×215255321413² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215255321423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109935345 + ... + 109937302.

It is an arithmetic number, because the mean of its divisors is an integer number (29682807480).

Almost surely, 2^215255321413 is an apocalyptic number.

It is an amenable number.

215255321413 is a deficient number, since it is larger than the sum of its proper divisors (22207138427).

215255321413 is a wasteful number, since it uses less digits than its factorization.

215255321413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219872747.

The product of its digits is 36000, while the sum is 34.

Adding to 215255321413 its reverse (314123552512), we get a palindrome (529378873925).

The spelling of 215255321413 in words is "two hundred fifteen billion, two hundred fifty-five million, three hundred twenty-one thousand, four hundred thirteen".