2160686344 has 8 divisors (see below), whose sum is σ = 4051286910. Its totient is φ = 1080343168.

The previous prime is 2160686293. The next prime is 2160686357. The reversal of 2160686344 is 4436860612.

It can be written as a sum of positive squares in only one way, i.e., 1576884100 + 583802244 = 39710^2 + 24162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2160686297 and 2160686306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135042889 + ... + 135042904.

Almost surely, 2^2160686344 is an apocalyptic number.

It is an amenable number.

2160686344 is a deficient number, since it is larger than the sum of its proper divisors (1890600566).

2160686344 is a wasteful number, since it uses less digits than its factorization.

2160686344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270085799 (or 270085795 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 2160686344 is about 46483.1834538040. The cubic root of 2160686344 is about 1292.7977146425.

The spelling of 2160686344 in words is "two billion, one hundred sixty million, six hundred eighty-six thousand, three hundred forty-four".