2566772180 has 24 divisors (see below), whose sum is σ = 6160253568. Its totient is φ = 880036128.

The previous prime is 2566772171. The next prime is 2566772203. The reversal of 2566772180 is 812776652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9166904 + ... + 9167183.

It is an arithmetic number, because the mean of its divisors is an integer number (256677232).

Almost surely, 2^2566772180 is an apocalyptic number.

2566772180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2566772180 is an abundant number, since it is smaller than the sum of its proper divisors (3593481388).

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

2566772180 is a wasteful number, since it uses less digits than its factorization.

2566772180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18334103 (or 18334101 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 2566772180 is about 50663.3218413479. The cubic root of 2566772180 is about 1369.1859728076.

The spelling of 2566772180 in words is "two billion, five hundred sixty-six million, seven hundred seventy-two thousand, one hundred eighty".