669869873170 has 16 divisors (see below), whose sum is σ = 1209051243648. Its totient is φ = 267217844400.

The previous prime is 669869873159. The next prime is 669869873173. The reversal of 669869873170 is 71378968966.

It is a self number, because there is not a number n which added to its sum of digits gives 669869873170.

It is not an unprimeable number, because it can be changed into a prime (669869873173) 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, 91259256 + ... + 91266595.

It is an arithmetic number, because the mean of its divisors is an integer number (75565702728).

Almost surely, 2^669869873170 is an apocalyptic number.

669869873170 is a deficient number, since it is larger than the sum of its proper divisors (539181370478).

669869873170 is a wasteful number, since it uses less digits than its factorization.

669869873170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182526225.

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 669869873170 in words is "six hundred sixty-nine billion, eight hundred sixty-nine million, eight hundred seventy-three thousand, one hundred seventy".