20015511414001 has 8 divisors (see below), whose sum is σ = 21193124341320. Its totient is φ = 18837924031488.

The previous prime is 20015511413957. The next prime is 20015511414053. The reversal of 20015511414001 is 10041411551002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17844913256976 + 2170598157025 = 4224324^2 + 1473295^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20015511414001 - 2²³ = 20015503025393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20015511414901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4761196 + ... + 7918333.

It is an arithmetic number, because the mean of its divisors is an integer number (2649140542665).

Almost surely, 2^{20015511414001} is an apocalyptic number.

It is an amenable number.

20015511414001 is a deficient number, since it is larger than the sum of its proper divisors (1177612927319).

20015511414001 is a wasteful number, since it uses less digits than its factorization.

20015511414001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12772403.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 20015511414001 its reverse (10041411551002), we get a palindrome (30056922965003).

The spelling of 20015511414001 in words is "twenty trillion, fifteen billion, five hundred eleven million, four hundred fourteen thousand, one".