17666349312 has 72 divisors (see below), whose sum is σ = 49062573504. Its totient is φ = 5632743424.

The previous prime is 17666349301. The next prime is 17666349317. The reversal of 17666349312 is 21394366671.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (17666349317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482403 + ... + 517730.

It is an arithmetic number, because the mean of its divisors is an integer number (681424632).

Almost surely, 2^17666349312 is an apocalyptic number.

17666349312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17666349312 is an abundant number, since it is smaller than the sum of its proper divisors (31396224192).

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

17666349312 is a wasteful number, since it uses less digits than its factorization.

17666349312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000175 (or 1000161 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The spelling of 17666349312 in words is "seventeen billion, six hundred sixty-six million, three hundred forty-nine thousand, three hundred twelve".