1666683350167 has 8 divisors (see below), whose sum is σ = 1818209571840. Its totient is φ = 1515158720760.

The previous prime is 1666683350149. The next prime is 1666683350177. The reversal of 1666683350167 is 7610533866661.

It is a happy number.

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 1666683350167 - 2¹¹ = 1666683348119 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 (1666683350117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3221898 + ... + 3703240.

It is an arithmetic number, because the mean of its divisors is an integer number (227276196480).

Almost surely, 2^{1666683350167} is an apocalyptic number.

1666683350167 is a deficient number, since it is larger than the sum of its proper divisors (151526221673).

1666683350167 is a wasteful number, since it uses less digits than its factorization.

1666683350167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796133.

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 1666683350167 in words is "one trillion, six hundred sixty-six billion, six hundred eighty-three million, three hundred fifty thousand, one hundred sixty-seven".