2178081330 has 16 divisors (see below), whose sum is σ = 5227395264. Its totient is φ = 580821680.

The previous prime is 2178081319. The next prime is 2178081341. The reversal of 2178081330 is 331808712.

It is an interprime number because it is at equal distance from previous prime (2178081319) and next prime (2178081341).

It is a junction number, because it is equal to n+sod(n) for n = 2178081291 and 2178081300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36301326 + ... + 36301385.

It is an arithmetic number, because the mean of its divisors is an integer number (326712204).

Almost surely, 2^2178081330 is an apocalyptic number.

2178081330 is an abundant number, since it is smaller than the sum of its proper divisors (3049313934).

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

2178081330 is a wasteful number, since it uses less digits than its factorization.

2178081330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72602721.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 2178081330 is about 46669.9188985796. The cubic root of 2178081330 is about 1296.2577445667.

The spelling of 2178081330 in words is "two billion, one hundred seventy-eight million, eighty-one thousand, three hundred thirty".