231666261310 has 16 divisors (see below), whose sum is σ = 454908295152. Its totient is φ = 84242276800.

The previous prime is 231666261271. The next prime is 231666261353. The reversal of 231666261310 is 13162666132.

It is a super-2 number, since 2×231666261310² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231666261310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053028351 + ... + 1053028570.

It is an arithmetic number, because the mean of its divisors is an integer number (28431768447).

Almost surely, 2^231666261310 is an apocalyptic number.

231666261310 is a deficient number, since it is larger than the sum of its proper divisors (223242033842).

231666261310 is a wasteful number, since it uses less digits than its factorization.

231666261310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106056939.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 231666261310 in words is "two hundred thirty-one billion, six hundred sixty-six million, two hundred sixty-one thousand, three hundred ten".