231666601166682 has 24 divisors (see below), whose sum is σ = 509283602566368. Its totient is φ = 70202000353320.

The previous prime is 231666601166657. The next prime is 231666601166711. The reversal of 231666601166682 is 286661106666132.

It is a super-2 number, since 2×231666601166682² (a number of 30 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 159550000078 + ... + 159550001529.

It is an arithmetic number, because the mean of its divisors is an integer number (21220150106932).

Almost surely, 2^{231666601166682} is an apocalyptic number.

231666601166682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231666601166682 is an abundant number, since it is smaller than the sum of its proper divisors (277617001399686).

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

231666601166682 is a wasteful number, since it uses less digits than its factorization.

231666601166682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319100001634 (or 319100001623 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 60.

It can be divided in two parts, 23166660 and 1166682, that added together give a palindrome (24333342).

The spelling of 231666601166682 in words is "two hundred thirty-one trillion, six hundred sixty-six billion, six hundred one million, one hundred sixty-six thousand, six hundred eighty-two".