231435544560 has 80 divisors (see below), whose sum is σ = 782672941440. Its totient is φ = 56105585920.

The previous prime is 231435544559. The next prime is 231435544573. The reversal of 231435544560 is 65445534132.

231435544560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×231435544560² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43829850 + ... + 43835129.

It is an arithmetic number, because the mean of its divisors is an integer number (9783411768).

Almost surely, 2^231435544560 is an apocalyptic number.

231435544560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231435544560 is an abundant number, since it is smaller than the sum of its proper divisors (551237396880).

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

231435544560 is a wasteful number, since it uses less digits than its factorization.

231435544560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87665006 (or 87665000 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 231435544560 in words is "two hundred thirty-one billion, four hundred thirty-five million, five hundred forty-four thousand, five hundred sixty".