2145609580 has 24 divisors (see below), whose sum is σ = 4742927280. Its totient is φ = 813072960.

The previous prime is 2145609553. The next prime is 2145609617. The reversal of 2145609580 is 859065412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2822791 + ... + 2823550.

It is an arithmetic number, because the mean of its divisors is an integer number (197621970).

Almost surely, 2^2145609580 is an apocalyptic number.

2145609580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145609580 is an abundant number, since it is smaller than the sum of its proper divisors (2597317700).

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

2145609580 is a wasteful number, since it uses less digits than its factorization.

2145609580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646369 (or 5646367 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 2145609580 is about 46320.7251670351. The cubic root of 2145609580 is about 1289.7837467756.

The spelling of 2145609580 in words is "two billion, one hundred forty-five million, six hundred nine thousand, five hundred eighty".