20013653147065 has 8 divisors (see below), whose sum is σ = 25280403975360. Its totient is φ = 15168242385072.

The previous prime is 20013653147057. The next prime is 20013653147093. The reversal of 20013653147065 is 56074135631002.

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 20013653147065 - 2³ = 20013653147057 is a prime.

It is a super-2 number, since 2×20013653147065² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105335016469 + ... + 105335016658.

It is an arithmetic number, because the mean of its divisors is an integer number (3160050496920).

Almost surely, 2^{20013653147065} is an apocalyptic number.

It is an amenable number.

20013653147065 is a deficient number, since it is larger than the sum of its proper divisors (5266750828295).

20013653147065 is a wasteful number, since it uses less digits than its factorization.

20013653147065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210670033151.

The product of its (nonzero) digits is 453600, while the sum is 43.

Adding to 20013653147065 its reverse (56074135631002), we get a palindrome (76087788778067).

The spelling of 20013653147065 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, one hundred forty-seven thousand, sixty-five".