142220045666 has 8 divisors (see below), whose sum is σ = 219095746140. Its totient is φ = 69188130288.

The previous prime is 142220045581. The next prime is 142220045677. The reversal of 142220045666 is 666540022241.

142220045666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 128788394641 + 13431651025 = 358871^2 + 115895^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960946181 + ... + 960946328.

Almost surely, 2^142220045666 is an apocalyptic number.

142220045666 is a deficient number, since it is larger than the sum of its proper divisors (76875700474).

142220045666 is a wasteful number, since it uses less digits than its factorization.

142220045666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921892548.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 142220045666 in words is "one hundred forty-two billion, two hundred twenty million, forty-five thousand, six hundred sixty-six".