2669555220 has 48 divisors (see below), whose sum is σ = 7914449088. Its totient is φ = 670005760.

The previous prime is 2669555179. The next prime is 2669555221. The reversal of 2669555220 is 225559662.

2669555220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669555221) 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, 1307586 + ... + 1309625.

It is an arithmetic number, because the mean of its divisors is an integer number (164884356).

Almost surely, 2^2669555220 is an apocalyptic number.

2669555220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2669555220 is an abundant number, since it is smaller than the sum of its proper divisors (5244893868).

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

2669555220 is a wasteful number, since it uses less digits than its factorization.

2669555220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617240 (or 2617238 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 2669555220 is about 51667.7386770507. The cubic root of 2669555220 is about 1387.2230707767.

The spelling of 2669555220 in words is "two billion, six hundred sixty-nine million, five hundred fifty-five thousand, two hundred twenty".