2166070072726 has 32 divisors (see below), whose sum is σ = 3814388271360. Its totient is φ = 903044513376.

The previous prime is 2166070072679. The next prime is 2166070072739. The reversal of 2166070072726 is 6272700706612.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2173645 + ... + 3009463.

It is an arithmetic number, because the mean of its divisors is an integer number (119199633480).

Almost surely, 2^{2166070072726} is an apocalyptic number.

2166070072726 is a deficient number, since it is larger than the sum of its proper divisors (1648318198634).

2166070072726 is a wasteful number, since it uses less digits than its factorization.

2166070072726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840868.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 2166070072726 in words is "two trillion, one hundred sixty-six billion, seventy million, seventy-two thousand, seven hundred twenty-six".