20135027646246 has 16 divisors (see below), whose sum is σ = 40779802828800. Its totient is φ = 6626717959368.

The previous prime is 20135027646241. The next prime is 20135027646247. The reversal of 20135027646246 is 64264672053102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20135027646195 and 20135027646204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135027646241) 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, 21239480166 + ... + 21239481113.

It is an arithmetic number, because the mean of its divisors is an integer number (2548737676800).

Almost surely, 2^{20135027646246} is an apocalyptic number.

20135027646246 is an abundant number, since it is smaller than the sum of its proper divisors (20644775182554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20135027646246 is a wasteful number, since it uses less digits than its factorization.

20135027646246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42478961363.

The product of its (nonzero) digits is 2903040, while the sum is 48.

Adding to 20135027646246 its reverse (64264672053102), we get a palindrome (84399699699348).

The spelling of 20135027646246 in words is "twenty trillion, one hundred thirty-five billion, twenty-seven million, six hundred forty-six thousand, two hundred forty-six".