163659054312 has 160 divisors (see below), whose sum is σ = 495131637000. Its totient is φ = 50206334976.

The previous prime is 163659054287. The next prime is 163659054407. The reversal of 163659054312 is 213450956361.

163659054312 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 5 + 90 + 543 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 145028442276 + 18630612036 = 380826^2 + 136494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2810064 + ... + 2867712.

Almost surely, 2^163659054312 is an apocalyptic number.

163659054312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163659054312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247565818500).

163659054312 is an abundant number, since it is smaller than the sum of its proper divisors (331472582688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163659054312 is a wasteful number, since it uses less digits than its factorization.

163659054312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58017 (or 58004 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 163659054312 in words is "one hundred sixty-three billion, six hundred fifty-nine million, fifty-four thousand, three hundred twelve".