215163650 has 48 divisors (see below), whose sum is σ = 440221824. Its totient is φ = 77743680.

The previous prime is 215163607. The next prime is 215163661. The reversal of 215163650 is 56361512.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27029 + ... + 34071.

It is an arithmetic number, because the mean of its divisors is an integer number (9171288).

Almost surely, 2^215163650 is an apocalyptic number.

215163650 is an abundant number, since it is smaller than the sum of its proper divisors (225058174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215163650 is a wasteful number, since it uses less digits than its factorization.

215163650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115 (or 7110 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 215163650 is about 14668.4576558001. The cubic root of 215163650 is about 599.2246002088.

The spelling of 215163650 in words is "two hundred fifteen million, one hundred sixty-three thousand, six hundred fifty".