660050215 has 64 divisors (see below), whose sum is σ = 958256640. Its totient is φ = 431101440.

The previous prime is 660050213. The next prime is 660050227. The reversal of 660050215 is 512050066.

It is not a de Polignac number, because 660050215 - 2¹ = 660050213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 660050215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660050213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1662397 + ... + 1662793.

It is an arithmetic number, because the mean of its divisors is an integer number (14972760).

Almost surely, 2^660050215 is an apocalyptic number.

660050215 is a deficient number, since it is larger than the sum of its proper divisors (298206425).

660050215 is a wasteful number, since it uses less digits than its factorization.

660050215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 660050215 is about 25691.4424468538. The cubic root of 660050215 is about 870.6808494312.

The spelling of 660050215 in words is "six hundred sixty million, fifty thousand, two hundred fifteen".