16666971382 has 8 divisors (see below), whose sum is σ = 25676145216. Its totient is φ = 8108256312.

The previous prime is 16666971371. The next prime is 16666971383. The reversal of 16666971382 is 28317966661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666971383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112614598 + ... + 112614745.

It is an arithmetic number, because the mean of its divisors is an integer number (3209518152).

Almost surely, 2^16666971382 is an apocalyptic number.

16666971382 is a deficient number, since it is larger than the sum of its proper divisors (9009173834).

16666971382 is a wasteful number, since it uses less digits than its factorization.

16666971382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225229382.

The product of its digits is 3919104, while the sum is 55.

The spelling of 16666971382 in words is "sixteen billion, six hundred sixty-six million, nine hundred seventy-one thousand, three hundred eighty-two".