2210645643 has 16 divisors (see below), whose sum is σ = 3127773600. Its totient is φ = 1384022016.

The previous prime is 2210645581. The next prime is 2210645659. The reversal of 2210645643 is 3465460122.

It is not a de Polignac number, because 2210645643 - 2¹⁶ = 2210580107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2210645683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24118 + ... + 70731.

It is an arithmetic number, because the mean of its divisors is an integer number (195485850).

Almost surely, 2^2210645643 is an apocalyptic number.

2210645643 is a deficient number, since it is larger than the sum of its proper divisors (917127957).

2210645643 is a wasteful number, since it uses less digits than its factorization.

2210645643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95326.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2210645643 is about 47017.5035811133. The cubic root of 2210645643 is about 1302.6858952454.

The spelling of 2210645643 in words is "two billion, two hundred ten million, six hundred forty-five thousand, six hundred forty-three".