2666290128 has 60 divisors (see below), whose sum is σ = 6923181888. Its totient is φ = 884231360.

The previous prime is 2666290097. The next prime is 2666290141. The reversal of 2666290128 is 8210926662.

It is a self number, because there is not a number n which added to its sum of digits gives 2666290128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6186073 + ... + 6186503.

Almost surely, 2^2666290128 is an apocalyptic number.

It is an amenable number.

2666290128 is an abundant number, since it is smaller than the sum of its proper divisors (4256891760).

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

2666290128 is an equidigital number, since it uses as much as digits as its factorization.

2666290128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2666290128 is about 51636.1320007609. The cubic root of 2666290128 is about 1386.6572762965.

The spelling of 2666290128 in words is "two billion, six hundred sixty-six million, two hundred ninety thousand, one hundred twenty-eight".