2223051660 has 144 divisors (see below), whose sum is σ = 7091884800. Its totient is φ = 562573440.

The previous prime is 2223051659. The next prime is 2223051679. The reversal of 2223051660 is 661503222.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 540291 + ... + 544389.

It is an arithmetic number, because the mean of its divisors is an integer number (49249200).

Almost surely, 2^2223051660 is an apocalyptic number.

2223051660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223051660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3545942400).

2223051660 is an abundant number, since it is smaller than the sum of its proper divisors (4868833140).

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

2223051660 is a wasteful number, since it uses less digits than its factorization.

2223051660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268 (or 4263 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2223051660 is about 47149.2487745033. The cubic root of 2223051660 is about 1305.1182171499.

Adding to 2223051660 its reverse (661503222), we get a palindrome (2884554882).

The spelling of 2223051660 in words is "two billion, two hundred twenty-three million, fifty-one thousand, six hundred sixty".