2660220830 has 8 divisors (see below), whose sum is σ = 4788397512. Its totient is φ = 1064088328.

The previous prime is 2660220811. The next prime is 2660220833. The reversal of 2660220830 is 380220662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2660220793 and 2660220802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660220833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133011032 + ... + 133011051.

It is an arithmetic number, because the mean of its divisors is an integer number (598549689).

Almost surely, 2^2660220830 is an apocalyptic number.

2660220830 is a deficient number, since it is larger than the sum of its proper divisors (2128176682).

2660220830 is a wasteful number, since it uses less digits than its factorization.

2660220830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266022090.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2660220830 is about 51577.3286435038. The cubic root of 2660220830 is about 1385.6043238485.

The spelling of 2660220830 in words is "two billion, six hundred sixty million, two hundred twenty thousand, eight hundred thirty".