179994223345 has 8 divisors (see below), whose sum is σ = 216099533160. Its totient is φ = 143924401920.

The previous prime is 179994223337. The next prime is 179994223349. The reversal of 179994223345 is 543322499971.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 99214920256 + 80779303089 = 314984^2 + 284217^2 .

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

It is not a de Polignac number, because 179994223345 - 2³ = 179994223337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 179994223345.

It is not an unprimeable number, because it can be changed into a prime (179994223349) 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, 8860936 + ... + 8881225.

It is an arithmetic number, because the mean of its divisors is an integer number (27012441645).

Almost surely, 2^179994223345 is an apocalyptic number.

It is an amenable number.

179994223345 is a deficient number, since it is larger than the sum of its proper divisors (36105309815).

179994223345 is a wasteful number, since it uses less digits than its factorization.

179994223345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17744195.

The product of its digits is 14696640, while the sum is 58.

The spelling of 179994223345 in words is "one hundred seventy-nine billion, nine hundred ninety-four million, two hundred twenty-three thousand, three hundred forty-five".