231168765040 has 80 divisors (see below), whose sum is σ = 539625461760. Its totient is φ = 92096697600.

The previous prime is 231168765007. The next prime is 231168765041. The reversal of 231168765040 is 40567861132.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231168765041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43198365 + ... + 43203715.

It is an arithmetic number, because the mean of its divisors is an integer number (6745318272).

Almost surely, 2^231168765040 is an apocalyptic number.

231168765040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231168765040 is an abundant number, since it is smaller than the sum of its proper divisors (308456696720).

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

231168765040 is a wasteful number, since it uses less digits than its factorization.

231168765040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430 (or 7424 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 231168765040 in words is "two hundred thirty-one billion, one hundred sixty-eight million, seven hundred sixty-five thousand, forty".