215545214041 has 4 divisors (see below), whose sum is σ = 215641484800. Its totient is φ = 215448943284.

The previous prime is 215545214011. The next prime is 215545214047. The reversal of 215545214041 is 140412545512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215545214041 - 2²⁵ = 215511659609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215545213988 and 215545214006.

It is not an unprimeable number, because it can be changed into a prime (215545214047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48132021 + ... + 48136498.

It is an arithmetic number, because the mean of its divisors is an integer number (53910371200).

Almost surely, 2^215545214041 is an apocalyptic number.

It is an amenable number.

215545214041 is a deficient number, since it is larger than the sum of its proper divisors (96270759).

215545214041 is an equidigital number, since it uses as much as digits as its factorization.

215545214041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96270758.

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 215545214041 its reverse (140412545512), we get a palindrome (355957759553).

The spelling of 215545214041 in words is "two hundred fifteen billion, five hundred forty-five million, two hundred fourteen thousand, forty-one".