163444660351226 has 8 divisors (see below), whose sum is σ = 245168570666484. Its totient is φ = 81721803462400.

The previous prime is 163444660351223. The next prime is 163444660351249. The reversal of 163444660351226 is 622153066444361.

163444660351226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159553908046225 + 3890752305001 = 12631465^2 + 1972499^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163444660351223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262968605 + ... + 263589408.

Almost surely, 2^{163444660351226} is an apocalyptic number.

163444660351226 is a deficient number, since it is larger than the sum of its proper divisors (81723910315258).

163444660351226 is a wasteful number, since it uses less digits than its factorization.

163444660351226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526713216.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 163444660351226 in words is "one hundred sixty-three trillion, four hundred forty-four billion, six hundred sixty million, three hundred fifty-one thousand, two hundred twenty-six".