17208979966 has 16 divisors (see below), whose sum is σ = 26652100608. Its totient is φ = 8325070200.

The previous prime is 17208979927. The next prime is 17208979967. The reversal of 17208979966 is 66997980271.

It is a super-2 number, since 2×17208979966² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 17208979898 and 17208979907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17208979967) 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, 273511 + ... + 330493.

It is an arithmetic number, because the mean of its divisors is an integer number (1665756288).

Almost surely, 2^17208979966 is an apocalyptic number.

17208979966 is a deficient number, since it is larger than the sum of its proper divisors (9443120642).

17208979966 is a wasteful number, since it uses less digits than its factorization.

17208979966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61887.

The product of its (nonzero) digits is 20575296, while the sum is 64.

The spelling of 17208979966 in words is "seventeen billion, two hundred eight million, nine hundred seventy-nine thousand, nine hundred sixty-six".