179995206868 has 6 divisors (see below), whose sum is σ = 314991612026. Its totient is φ = 89997603432.

The previous prime is 179995206823. The next prime is 179995206871. The reversal of 179995206868 is 868602599971.

It can be written as a sum of positive squares in only one way, i.e., 114719044804 + 65276162064 = 338702^2 + 255492^2 .

It is a super-2 number, since 2×179995206868² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 179995206797 and 179995206806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22499400855 + ... + 22499400862.

Almost surely, 2^179995206868 is an apocalyptic number.

It is an amenable number.

179995206868 is a deficient number, since it is larger than the sum of its proper divisors (134996405158).

179995206868 is a wasteful number, since it uses less digits than its factorization.

179995206868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44998801721 (or 44998801719 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 70.

The spelling of 179995206868 in words is "one hundred seventy-nine billion, nine hundred ninety-five million, two hundred six thousand, eight hundred sixty-eight".