1666142503314 has 64 divisors (see below), whose sum is σ = 3401655972480. Its totient is φ = 543892930560.

The previous prime is 1666142503283. The next prime is 1666142503331. The reversal of 1666142503314 is 4133052416661.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 216913554 + ... + 216921234.

It is an arithmetic number, because the mean of its divisors is an integer number (53150874570).

Almost surely, 2^{1666142503314} is an apocalyptic number.

1666142503314 is an abundant number, since it is smaller than the sum of its proper divisors (1735513469166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1666142503314 is a wasteful number, since it uses less digits than its factorization.

1666142503314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9995.

The product of its (nonzero) digits is 311040, while the sum is 42.

Adding to 1666142503314 its reverse (4133052416661), we get a palindrome (5799194919975).

The spelling of 1666142503314 in words is "one trillion, six hundred sixty-six billion, one hundred forty-two million, five hundred three thousand, three hundred fourteen".