2162205648 has 30 divisors (see below), whose sum is σ = 6051173154. Its totient is φ = 720735168.

The previous prime is 2162205629. The next prime is 2162205659. The reversal of 2162205648 is 8465022612.

It is a happy number.

2162205648 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 2 + 0 + 5 + 648 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1959655824 + 202549824 = 44268^2 + 14232^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 7507515 + ... + 7507802.

Almost surely, 2^2162205648 is an apocalyptic number.

It is an amenable number.

2162205648 is an abundant number, since it is smaller than the sum of its proper divisors (3888967506).

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

2162205648 is a wasteful number, since it uses less digits than its factorization.

2162205648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015331 (or 15015322 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 2162205648 is about 46499.5230943286. The cubic root of 2162205648 is about 1293.1006573555.

The spelling of 2162205648 in words is "two billion, one hundred sixty-two million, two hundred five thousand, six hundred forty-eight".