2660220885 has 16 divisors (see below), whose sum is σ = 4864404096. Its totient is φ = 1216100928.

The previous prime is 2660220883. The next prime is 2660220961. The reversal of 2660220885 is 5880220662.

It is not a de Polignac number, because 2660220885 - 2¹ = 2660220883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660220883) 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, 12667614 + ... + 12667823.

It is an arithmetic number, because the mean of its divisors is an integer number (304025256).

Almost surely, 2^2660220885 is an apocalyptic number.

It is an amenable number.

2660220885 is a deficient number, since it is larger than the sum of its proper divisors (2204183211).

2660220885 is a wasteful number, since it uses less digits than its factorization.

2660220885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25335452.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 2660220885 is about 51577.3291766838. The cubic root of 2660220885 is about 1385.6043333976.

The spelling of 2660220885 in words is "two billion, six hundred sixty million, two hundred twenty thousand, eight hundred eighty-five".