2180464144 has 10 divisors (see below), whose sum is σ = 4224649310. Its totient is φ = 1090232064.

The previous prime is 2180464087. The next prime is 2180464171. The reversal of 2180464144 is 4414640812.

It can be written as a sum of positive squares in only one way, i.e., 2021401600 + 159062544 = 44960^2 + 12612^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68139489 + ... + 68139520.

It is an arithmetic number, because the mean of its divisors is an integer number (422464931).

Almost surely, 2^2180464144 is an apocalyptic number.

It is an amenable number.

2180464144 is a deficient number, since it is larger than the sum of its proper divisors (2044185166).

2180464144 is a wasteful number, since it uses less digits than its factorization.

2180464144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136279017 (or 136279011 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 2180464144 is about 46695.4402913175. The cubic root of 2180464144 is about 1296.7302729009.

The spelling of 2180464144 in words is "two billion, one hundred eighty million, four hundred sixty-four thousand, one hundred forty-four".