166960613912975 has 96 divisors (see below), whose sum is σ = 217768198401600. Its totient is φ = 126852289228800.

The previous prime is 166960613912893. The next prime is 166960613913061. The reversal of 166960613912975 is 579219316069661.

It is a Cunningham number, because it is equal to 12921324²-1.

It is not a de Polignac number, because 166960613912975 - 2¹⁶ = 166960613847439 is a prime.

It is a super-3 number, since 3×166960613912975³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 166960613912899 and 166960613912908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3966825731 + ... + 3966867819.

It is an arithmetic number, because the mean of its divisors is an integer number (2268418733350).

Almost surely, 2^{166960613912975} is an apocalyptic number.

166960613912975 is a deficient number, since it is larger than the sum of its proper divisors (50807584488625).

166960613912975 is a wasteful number, since it uses less digits than its factorization.

166960613912975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42733 (or 42728 counting only the distinct ones).

The product of its (nonzero) digits is 198404640, while the sum is 71.

The spelling of 166960613912975 in words is "one hundred sixty-six trillion, nine hundred sixty billion, six hundred thirteen million, nine hundred twelve thousand, nine hundred seventy-five".