2166072515714 has 8 divisors (see below), whose sum is σ = 3251752478460. Its totient is φ = 1082155022896.

The previous prime is 2166072515713. The next prime is 2166072515743. The reversal of 2166072515714 is 4175152706612.

It can be written as a sum of positive squares in 2 ways, for example, as 1291707260089 + 874365255625 = 1136533^2 + 935075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2166072515713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440614409 + ... + 440619324.

Almost surely, 2^{2166072515714} is an apocalyptic number.

2166072515714 is a deficient number, since it is larger than the sum of its proper divisors (1085679962746).

2166072515714 is a wasteful number, since it uses less digits than its factorization.

2166072515714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881234964.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 2166072515714 in words is "two trillion, one hundred sixty-six billion, seventy-two million, five hundred fifteen thousand, seven hundred fourteen".