2662385220 has 192 divisors, whose sum is σ = 9066758400. Its totient is φ = 643230720.

The previous prime is 2662385189. The next prime is 2662385221. The reversal of 2662385220 is 225832662.

2662385220 is a `hidden beast` number, since 2 + 6 + 623 + 8 + 5 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2662385221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2357616 + ... + 2358744.

It is an arithmetic number, because the mean of its divisors is an integer number (47222700).

Almost surely, 2^2662385220 is an apocalyptic number.

2662385220 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 2662385220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4533379200).

2662385220 is an abundant number, since it is smaller than the sum of its proper divisors (6404373180).

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

2662385220 is a wasteful number, since it uses less digits than its factorization.

2662385220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 2662385220 is about 51598.3063675544. The cubic root of 2662385220 is about 1385.9800038344.

The spelling of 2662385220 in words is "two billion, six hundred sixty-two million, three hundred eighty-five thousand, two hundred twenty".