2166754016789 has 8 divisors (see below), whose sum is σ = 2173053961728. Its totient is φ = 2160454392640.

The previous prime is 2166754016773. The next prime is 2166754016803. The reversal of 2166754016789 is 9876104576612.

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

It is a cyclic number.

It is not a de Polignac number, because 2166754016789 - 2⁴ = 2166754016773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166754016719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23338349 + ... + 23431005.

It is an arithmetic number, because the mean of its divisors is an integer number (271631745216).

Almost surely, 2^{2166754016789} is an apocalyptic number.

It is an amenable number.

2166754016789 is a deficient number, since it is larger than the sum of its proper divisors (6299944939).

2166754016789 is an equidigital number, since it uses as much as digits as its factorization.

2166754016789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160395.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 2166754016789 in words is "two trillion, one hundred sixty-six billion, seven hundred fifty-four million, sixteen thousand, seven hundred eighty-nine".