2660242266 has 48 divisors (see below), whose sum is σ = 6352714368. Its totient is φ = 797817600.

The previous prime is 2660242217. The next prime is 2660242267. The reversal of 2660242266 is 6622420662.

It is a happy number.

2660242266 is a `hidden beast` number, since 2 + 6 + 602 + 42 + 2 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2660242266.

It is not an unprimeable number, because it can be changed into a prime (2660242267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50050 + ... + 88461.

It is an arithmetic number, because the mean of its divisors is an integer number (132348216).

Almost surely, 2^2660242266 is an apocalyptic number.

2660242266 is an abundant number, since it is smaller than the sum of its proper divisors (3692472102).

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

2660242266 is a wasteful number, since it uses less digits than its factorization.

2660242266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138627 (or 138624 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2660242266 is about 51577.5364475660. The cubic root of 2660242266 is about 1385.6080455614.

The spelling of 2660242266 in words is "two billion, six hundred sixty million, two hundred forty-two thousand, two hundred sixty-six".