2661030080 has 224 divisors, whose sum is σ = 6952366080. Its totient is φ = 967127040.

The previous prime is 2661030079. The next prime is 2661030109. The reversal of 2661030080 is 800301662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24413066 + ... + 24413174.

Almost surely, 2^2661030080 is an apocalyptic number.

2661030080 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 2661030080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3476183040).

2661030080 is an abundant number, since it is smaller than the sum of its proper divisors (4291336000).

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

2661030080 is a wasteful number, since it uses less digits than its factorization.

2661030080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2661030080 is about 51585.1730635849. The cubic root of 2661030080 is about 1385.7448117614.

The spelling of 2661030080 in words is "two billion, six hundred sixty-one million, thirty thousand, eighty".