2180259966 has 16 divisors (see below), whose sum is σ = 4367309184. Its totient is φ = 725621784.

The previous prime is 2180259959. The next prime is 2180260001. The reversal of 2180259966 is 6699520812.

It is a congruent number.

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, 278706 + ... + 286421.

It is an arithmetic number, because the mean of its divisors is an integer number (272956824).

Almost surely, 2^2180259966 is an apocalyptic number.

2180259966 is an abundant number, since it is smaller than the sum of its proper divisors (2187049218).

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

2180259966 is a wasteful number, since it uses less digits than its factorization.

2180259966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565775.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 2180259966 is about 46693.2539667134. The cubic root of 2180259966 is about 1296.6897964945.

The spelling of 2180259966 in words is "two billion, one hundred eighty million, two hundred fifty-nine thousand, nine hundred sixty-six".