163531247653 has 8 divisors (see below), whose sum is σ = 167340023136. Its totient is φ = 159722732400.

The previous prime is 163531247651. The next prime is 163531247701. The reversal of 163531247653 is 356742135361.

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

It is a cyclic number.

It is not a de Polignac number, because 163531247653 - 2¹ = 163531247651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163531247651) 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, 1865538 + ... + 1951228.

It is an arithmetic number, because the mean of its divisors is an integer number (20917502892).

Almost surely, 2^163531247653 is an apocalyptic number.

It is an amenable number.

163531247653 is a deficient number, since it is larger than the sum of its proper divisors (3808775483).

163531247653 is an equidigital number, since it uses as much as digits as its factorization.

163531247653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130115.

The product of its digits is 1360800, while the sum is 46.

The spelling of 163531247653 in words is "one hundred sixty-three billion, five hundred thirty-one million, two hundred forty-seven thousand, six hundred fifty-three".