2205666764 has 24 divisors (see below), whose sum is σ = 4413513888. Its totient is φ = 944818560.

The previous prime is 2205666761. The next prime is 2205666769. The reversal of 2205666764 is 4676665022.

It is not an unprimeable number, because it can be changed into a prime (2205666761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41552 + ... + 78344.

It is an arithmetic number, because the mean of its divisors is an integer number (183896412).

Almost surely, 2^2205666764 is an apocalyptic number.

It is an amenable number.

2205666764 is an abundant number, since it is smaller than the sum of its proper divisors (2207847124).

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

2205666764 is a wasteful number, since it uses less digits than its factorization.

2205666764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38945 (or 38943 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 2205666764 is about 46964.5266557643. The cubic root of 2205666764 is about 1301.7071780361.

The spelling of 2205666764 in words is "two billion, two hundred five million, six hundred sixty-six thousand, seven hundred sixty-four".