163230784631 has 4 divisors (see below), whose sum is σ = 164174315352. Its totient is φ = 162287253912.

The previous prime is 163230784621. The next prime is 163230784649. The reversal of 163230784631 is 136487032361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163230784631 - 2¹⁴ = 163230768247 is a prime.

It is a super-2 number, since 2×163230784631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163230784621) 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, 471765101 + ... + 471765446.

It is an arithmetic number, because the mean of its divisors is an integer number (41043578838).

Almost surely, 2^163230784631 is an apocalyptic number.

163230784631 is a deficient number, since it is larger than the sum of its proper divisors (943530721).

163230784631 is an equidigital number, since it uses as much as digits as its factorization.

163230784631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943530720.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 163230784631 in words is "one hundred sixty-three billion, two hundred thirty million, seven hundred eighty-four thousand, six hundred thirty-one".