2145558080 has 28 divisors (see below), whose sum is σ = 5109110940. Its totient is φ = 858223104.

The previous prime is 2145558047. The next prime is 2145558097. The reversal of 2145558080 is 808555412.

It can be written as a sum of positive squares in 2 ways, for example, as 537868864 + 1607689216 = 23192^2 + 40096^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3352115 + ... + 3352754.

Almost surely, 2^2145558080 is an apocalyptic number.

2145558080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145558080 is an abundant number, since it is smaller than the sum of its proper divisors (2963552860).

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

2145558080 is an equidigital number, since it uses as much as digits as its factorization.

2145558080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704886 (or 6704876 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The square root of 2145558080 is about 46320.1692570310. The cubic root of 2145558080 is about 1289.7734273470.

The spelling of 2145558080 in words is "two billion, one hundred forty-five million, five hundred fifty-eight thousand, eighty".