2164866360 has 128 divisors (see below), whose sum is σ = 6944071680. Its totient is φ = 538011648.

The previous prime is 2164866311. The next prime is 2164866373. The reversal of 2164866360 is 636684612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204969 + ... + 215271.

It is an arithmetic number, because the mean of its divisors is an integer number (54250560).

Almost surely, 2^2164866360 is an apocalyptic number.

2164866360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164866360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3472035840).

2164866360 is an abundant number, since it is smaller than the sum of its proper divisors (4779205320).

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

2164866360 is a wasteful number, since it uses less digits than its factorization.

2164866360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437 (or 10433 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 2164866360 is about 46528.1243980455. The cubic root of 2164866360 is about 1293.6308502374.

The spelling of 2164866360 in words is "two billion, one hundred sixty-four million, eight hundred sixty-six thousand, three hundred sixty".