1669586416946 has 8 divisors (see below), whose sum is σ = 2862148143360. Its totient is φ = 715537035828.

The previous prime is 1669586416873. The next prime is 1669586416969. The reversal of 1669586416946 is 6496146859661.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1669586416946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59628086306 + ... + 59628086333.

It is an arithmetic number, because the mean of its divisors is an integer number (357768517920).

Almost surely, 2^{1669586416946} is an apocalyptic number.

1669586416946 is a deficient number, since it is larger than the sum of its proper divisors (1192561726414).

1669586416946 is a wasteful number, since it uses less digits than its factorization.

1669586416946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119256172648.

The product of its digits is 403107840, while the sum is 71.

The spelling of 1669586416946 in words is "one trillion, six hundred sixty-nine billion, five hundred eighty-six million, four hundred sixteen thousand, nine hundred forty-six".