2215078650 has 144 divisors (see below), whose sum is σ = 6371758848. Its totient is φ = 571536000.

The previous prime is 2215078643. The next prime is 2215078673. The reversal of 2215078650 is 568705122.

It is a happy number.

2215078650 is a `hidden beast` number, since 2 + 21 + 507 + 86 + 50 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 373710 + ... + 379590.

Almost surely, 2^2215078650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215078650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3185879424).

2215078650 is an abundant number, since it is smaller than the sum of its proper divisors (4156680198).

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

2215078650 is a wasteful number, since it uses less digits than its factorization.

2215078650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939 (or 5922 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 2215078650 is about 47064.6220637115. The cubic root of 2215078650 is about 1303.5560723852.

The spelling of 2215078650 in words is "two billion, two hundred fifteen million, seventy-eight thousand, six hundred fifty".