231668460567 has 24 divisors (see below), whose sum is σ = 338130936000. Its totient is φ = 152838560448.

The previous prime is 231668460523. The next prime is 231668460577. The reversal of 231668460567 is 765064866132.

231668460567 is a `hidden beast` number, since 2 + 3 + 16 + 6 + 8 + 4 + 60 + 567 = 666.

It is not a de Polignac number, because 231668460567 - 2⁸ = 231668460311 is a prime.

It is a super-2 number, since 2×231668460567² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231668460577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39618 + ... + 681840.

It is an arithmetic number, because the mean of its divisors is an integer number (14088789000).

Almost surely, 2^231668460567 is an apocalyptic number.

231668460567 is a deficient number, since it is larger than the sum of its proper divisors (106462475433).

231668460567 is a wasteful number, since it uses less digits than its factorization.

231668460567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642647 (or 642644 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 231668460567 in words is "two hundred thirty-one billion, six hundred sixty-eight million, four hundred sixty thousand, five hundred sixty-seven".