20464136213334 has 16 divisors (see below), whose sum is σ = 44649024465600. Its totient is φ = 6201253397960.

The previous prime is 20464136213317. The next prime is 20464136213359. The reversal of 20464136213334 is 43331263146402.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155031334884 + ... + 155031335015.

It is an arithmetic number, because the mean of its divisors is an integer number (2790564029100).

Almost surely, 2^{20464136213334} is an apocalyptic number.

20464136213334 is an abundant number, since it is smaller than the sum of its proper divisors (24184888252266).

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

20464136213334 is a wasteful number, since it uses less digits than its factorization.

20464136213334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310062669915.

The product of its (nonzero) digits is 746496, while the sum is 42.

Adding to 20464136213334 its reverse (43331263146402), we get a palindrome (63795399359736).

The spelling of 20464136213334 in words is "twenty trillion, four hundred sixty-four billion, one hundred thirty-six million, two hundred thirteen thousand, three hundred thirty-four".