2662501220 has 12 divisors (see below), whose sum is σ = 5591252604. Its totient is φ = 1065000480.

The previous prime is 2662501211. The next prime is 2662501267. The reversal of 2662501220 is 221052662.

2662501220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 814189156 + 1848312064 = 28534^2 + 42992^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2662501220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66562511 + ... + 66562550.

It is an arithmetic number, because the mean of its divisors is an integer number (465937717).

Almost surely, 2^2662501220 is an apocalyptic number.

2662501220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2662501220 is an abundant number, since it is smaller than the sum of its proper divisors (2928751384).

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

2662501220 is a wasteful number, since it uses less digits than its factorization.

2662501220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133125070 (or 133125068 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2662501220 is about 51599.4304232130. The cubic root of 2662501220 is about 1386.0001325701. Note that the first 3 decimals are identical.

Adding to 2662501220 its reverse (221052662), we get a palindrome (2883553882).

The spelling of 2662501220 in words is "two billion, six hundred sixty-two million, five hundred one thousand, two hundred twenty".