2166223637074 has 8 divisors (see below), whose sum is σ = 3713526235008. Its totient is φ = 928381558740.

The previous prime is 2166223637027. The next prime is 2166223637077. The reversal of 2166223637074 is 4707363226612.

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

It is not an unprimeable number, because it can be changed into a prime (2166223637077) 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, 77365129882 + ... + 77365129909.

It is an arithmetic number, because the mean of its divisors is an integer number (464190779376).

Almost surely, 2^{2166223637074} is an apocalyptic number.

2166223637074 is a deficient number, since it is larger than the sum of its proper divisors (1547302597934).

2166223637074 is a wasteful number, since it uses less digits than its factorization.

2166223637074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154730259800.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 2166223637074 in words is "two trillion, one hundred sixty-six billion, two hundred twenty-three million, six hundred thirty-seven thousand, seventy-four".