2166668595360 has 72 divisors (see below), whose sum is σ = 7393756586580. Its totient is φ = 577778291712.

The previous prime is 2166668595353. The next prime is 2166668595431. The reversal of 2166668595360 is 635958666612.

It can be written as a sum of positive squares in 2 ways, for example, as 1927887818256 + 238780777104 = 1388484^2 + 488652^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752314045 + ... + 752316924.

Almost surely, 2^{2166668595360} is an apocalyptic number.

2166668595360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2166668595360 is an abundant number, since it is smaller than the sum of its proper divisors (5227087991220).

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

2166668595360 is a wasteful number, since it uses less digits than its factorization.

2166668595360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504630990 (or 1504630979 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 63.

The spelling of 2166668595360 in words is "two trillion, one hundred sixty-six billion, six hundred sixty-eight million, five hundred ninety-five thousand, three hundred sixty".