20014002713647 has 4 divisors (see below), whose sum is σ = 20014015939056. Its totient is φ = 20013989488240.

The previous prime is 20014002713623. The next prime is 20014002713693. The reversal of 20014002713647 is 74631720041002.

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

It is a cyclic number.

It is not a de Polignac number, because 20014002713647 - 2³⁹ = 19464246899759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014002716647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998179 + ... + 7484212.

It is an arithmetic number, because the mean of its divisors is an integer number (5003503984764).

Almost surely, 2^{20014002713647} is an apocalyptic number.

20014002713647 is a deficient number, since it is larger than the sum of its proper divisors (13225409).

20014002713647 is a wasteful number, since it uses less digits than its factorization.

20014002713647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225408.

The product of its (nonzero) digits is 56448, while the sum is 37.

Adding to 20014002713647 its reverse (74631720041002), we get a palindrome (94645722754649).

The spelling of 20014002713647 in words is "twenty trillion, fourteen billion, two million, seven hundred thirteen thousand, six hundred forty-seven".