215241074065 has 8 divisors (see below), whose sum is σ = 260952065640. Its totient is φ = 170417674752.

The previous prime is 215241074053. The next prime is 215241074071. The reversal of 215241074065 is 560470142512.

It can be written as a sum of positive squares in 4 ways, for example, as 5868938881 + 209372135184 = 76609^2 + 457572^2 .

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 215241074065 - 2¹⁷ = 215240942993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221897530 + ... + 221898499.

It is an arithmetic number, because the mean of its divisors is an integer number (32619008205).

Almost surely, 2^215241074065 is an apocalyptic number.

It is an amenable number.

215241074065 is a deficient number, since it is larger than the sum of its proper divisors (45710991575).

215241074065 is an equidigital number, since it uses as much as digits as its factorization.

215241074065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443796131.

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 215241074065 in words is "two hundred fifteen billion, two hundred forty-one million, seventy-four thousand, sixty-five".