20013496519806 has 48 divisors (see below), whose sum is σ = 43394155288848. Its totient is φ = 6666307920000.

The previous prime is 20013496519747. The next prime is 20013496519847. The reversal of 20013496519806 is 60891569431002.

20013496519806 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 3 + 49 + 6 + 519 + 80 + 6 = 666.

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 23 ways as a sum of consecutive naturals, for example, 392388306 + ... + 392439306.

It is an arithmetic number, because the mean of its divisors is an integer number (904044901851).

Almost surely, 2^{20013496519806} is an apocalyptic number.

20013496519806 is an abundant number, since it is smaller than the sum of its proper divisors (23380658769042).

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

20013496519806 is a wasteful number, since it uses less digits than its factorization.

20013496519806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66457 (or 66454 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 20013496519806 in words is "twenty trillion, thirteen billion, four hundred ninety-six million, five hundred nineteen thousand, eight hundred six".