215554313345 has 8 divisors (see below), whose sum is σ = 295617344064. Its totient is φ = 147808671984.

The previous prime is 215554313333. The next prime is 215554313383. The reversal of 215554313345 is 543313455512.

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

It is a cyclic number.

It is not a de Polignac number, because 215554313345 - 2⁴ = 215554313329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3079347299 + ... + 3079347368.

It is an arithmetic number, because the mean of its divisors is an integer number (36952168008).

Almost surely, 2^215554313345 is an apocalyptic number.

It is an amenable number.

215554313345 is a deficient number, since it is larger than the sum of its proper divisors (80063030719).

215554313345 is an equidigital number, since it uses as much as digits as its factorization.

215554313345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158694679.

The product of its digits is 540000, while the sum is 41.

Adding to 215554313345 its reverse (543313455512), we get a palindrome (758867768857).

The spelling of 215554313345 in words is "two hundred fifteen billion, five hundred fifty-four million, three hundred thirteen thousand, three hundred forty-five".