231443065647560 has 128 divisors (see below), whose sum is σ = 561111575270400. Its totient is φ = 85409099673600.

The previous prime is 231443065647557. The next prime is 231443065647589. The reversal of 231443065647560 is 65746560344132.

It is a junction number, because it is equal to n+sod(n) for n = 231443065647496 and 231443065647505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8595190817 + ... + 8595217743.

It is an arithmetic number, because the mean of its divisors is an integer number (4383684181800).

Almost surely, 2^{231443065647560} is an apocalyptic number.

231443065647560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231443065647560 is an abundant number, since it is smaller than the sum of its proper divisors (329668509622840).

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

231443065647560 is a wasteful number, since it uses less digits than its factorization.

231443065647560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35391 (or 35387 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 56.

The spelling of 231443065647560 in words is "two hundred thirty-one trillion, four hundred forty-three billion, sixty-five million, six hundred forty-seven thousand, five hundred sixty".