23061381866 has 8 divisors (see below), whose sum is σ = 34594628580. Its totient is φ = 11529839008.

The previous prime is 23061381823. The next prime is 23061381877. The reversal of 23061381866 is 66818316032.

It can be written as a sum of positive squares in 2 ways, for example, as 15035909641 + 8025472225 = 122621^2 + 89585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 391571 + ... + 446598.

Almost surely, 2^23061381866 is an apocalyptic number.

23061381866 is a deficient number, since it is larger than the sum of its proper divisors (11533246714).

23061381866 is a wasteful number, since it uses less digits than its factorization.

23061381866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851928.

The product of its (nonzero) digits is 248832, while the sum is 44.

Adding to 23061381866 its reverse (66818316032), we get a palindrome (89879697898).

The spelling of 23061381866 in words is "twenty-three billion, sixty-one million, three hundred eighty-one thousand, eight hundred sixty-six".