231646295168 has 72 divisors (see below), whose sum is σ = 487267397955. Its totient is φ = 109678185216.

The previous prime is 231646295161. The next prime is 231646295201. The reversal of 231646295168 is 861592646132.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 115823147584 + 115823147584 = 340328^2 + 340328^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340328.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231646295161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 103458593 + ... + 103460831.

Almost surely, 2^231646295168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231646295168

231646295168 is an abundant number, since it is smaller than the sum of its proper divisors (255621102787).

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

231646295168 is an frugal number, since it uses more digits than its factorization.

231646295168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530 (or 2260 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The spelling of 231646295168 in words is "two hundred thirty-one billion, six hundred forty-six million, two hundred ninety-five thousand, one hundred sixty-eight".