215441420215 has 16 divisors (see below), whose sum is σ = 299202554880. Its totient is φ = 145861241760.

The previous prime is 215441420203. The next prime is 215441420231. The reversal of 215441420215 is 512024144512.

It is not a de Polignac number, because 215441420215 - 2²¹ = 215439323063 is a prime.

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, 38955901 + ... + 38961430.

It is an arithmetic number, because the mean of its divisors is an integer number (18700159680).

Almost surely, 2^215441420215 is an apocalyptic number.

215441420215 is a deficient number, since it is larger than the sum of its proper divisors (83761134665).

215441420215 is an equidigital number, since it uses as much as digits as its factorization.

215441420215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77917422.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 215441420215 its reverse (512024144512), we get a palindrome (727465564727).

The spelling of 215441420215 in words is "two hundred fifteen billion, four hundred forty-one million, four hundred twenty thousand, two hundred fifteen".