215061324065 has 16 divisors (see below), whose sum is σ = 295343655168. Its totient is φ = 147269416896.

The previous prime is 215061324053. The next prime is 215061324113. The reversal of 215061324065 is 560423160512.

It is not a de Polignac number, because 215061324065 - 2²⁰ = 215060275489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian 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, 4165757 + ... + 4217066.

It is an arithmetic number, because the mean of its divisors is an integer number (18458978448).

Almost surely, 2^215061324065 is an apocalyptic number.

It is an amenable number.

215061324065 is a deficient number, since it is larger than the sum of its proper divisors (80282331103).

215061324065 is an equidigital number, since it uses as much as digits as its factorization.

215061324065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383568.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 215061324065 its reverse (560423160512), we get a palindrome (775484484577).

The spelling of 215061324065 in words is "two hundred fifteen billion, sixty-one million, three hundred twenty-four thousand, sixty-five".