26664032012 has 24 divisors (see below), whose sum is σ = 46829373696. Its totient is φ = 13284297488.

The previous prime is 26664031969. The next prime is 26664032051. The reversal of 26664032012 is 21023046662.

It is a self number, because there is not a number n which added to its sum of digits gives 26664032012.

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 7 ways as a sum of consecutive naturals, for example, 1291523 + ... + 1312005.

It is an arithmetic number, because the mean of its divisors is an integer number (1951223904).

Almost surely, 2^26664032012 is an apocalyptic number.

It is an amenable number.

26664032012 is a deficient number, since it is larger than the sum of its proper divisors (20165341684).

26664032012 is a wasteful number, since it uses less digits than its factorization.

26664032012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21637 (or 21635 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 26664032012 its reverse (21023046662), we get a palindrome (47687078674).

The spelling of 26664032012 in words is "twenty-six billion, six hundred sixty-four million, thirty-two thousand, twelve".