231080368566 has 16 divisors (see below), whose sum is σ = 462168978624. Its totient is φ = 77025415944.

The previous prime is 231080368513. The next prime is 231080368639. The reversal of 231080368566 is 665863080132.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57025 + ... + 682211.

It is an arithmetic number, because the mean of its divisors is an integer number (28885561164).

Almost surely, 2^231080368566 is an apocalyptic number.

231080368566 is an abundant number, since it is smaller than the sum of its proper divisors (231088610058).

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

231080368566 is a wasteful number, since it uses less digits than its factorization.

231080368566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686795.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 231080368566 in words is "two hundred thirty-one billion, eighty million, three hundred sixty-eight thousand, five hundred sixty-six".