142255415666 has 32 divisors (see below), whose sum is σ = 262644439680. Its totient is φ = 56272784256.

The previous prime is 142255415657. The next prime is 142255415677. The reversal of 142255415666 is 666514552241.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 142255415666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4280285 + ... + 4313391.

It is an arithmetic number, because the mean of its divisors is an integer number (8207638740).

Almost surely, 2^142255415666 is an apocalyptic number.

142255415666 is a deficient number, since it is larger than the sum of its proper divisors (120389024014).

142255415666 is a wasteful number, since it uses less digits than its factorization.

142255415666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56738.

The product of its digits is 1728000, while the sum is 47.

The spelling of 142255415666 in words is "one hundred forty-two billion, two hundred fifty-five million, four hundred fifteen thousand, six hundred sixty-six".