17179972066 has 8 divisors (see below), whose sum is σ = 26059508460. Its totient is φ = 8493469248.

The previous prime is 17179972049. The next prime is 17179972067. The reversal of 17179972066 is 66027997171.

It can be written as a sum of positive squares in 2 ways, for example, as 17103146841 + 76825225 = 130779^2 + 8765^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 17179971998 and 17179972016.

It is not an unprimeable number, because it can be changed into a prime (17179972067) 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, 48258171 + ... + 48258526.

Almost surely, 2^17179972066 is an apocalyptic number.

17179972066 is a deficient number, since it is larger than the sum of its proper divisors (8879536394).

17179972066 is an equidigital number, since it uses as much as digits as its factorization.

17179972066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96516788.

The product of its (nonzero) digits is 2000376, while the sum is 55.

The spelling of 17179972066 in words is "seventeen billion, one hundred seventy-nine million, nine hundred seventy-two thousand, sixty-six".