20444662040002 has 4 divisors (see below), whose sum is σ = 30666993060006. Its totient is φ = 10222331020000.

The previous prime is 20444662039979. The next prime is 20444662040017. The reversal of 20444662040002 is 20004026644402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16960880852881 + 3483781187121 = 4118359^2 + 1866489^2 .

It is a super-3 number, since 3×20444662040002³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20444662040002.

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 as a sum of consecutive naturals, namely, 5111165509999 + ... + 5111165510002.

Almost surely, 2^{20444662040002} is an apocalyptic number.

20444662040002 is a deficient number, since it is larger than the sum of its proper divisors (10222331020004).

20444662040002 is a wasteful number, since it uses less digits than its factorization.

20444662040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222331020003.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 20444662040002 its reverse (20004026644402), we get a palindrome (40448688684404).

The spelling of 20444662040002 in words is "twenty trillion, four hundred forty-four billion, six hundred sixty-two million, forty thousand, two".