20013630165654 has 64 divisors (see below), whose sum is σ = 41855082091200. Its totient is φ = 6371611803648.

The previous prime is 20013630165637. The next prime is 20013630165677. The reversal of 20013630165654 is 45656103631002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33953254 + ... + 34537670.

It is an arithmetic number, because the mean of its divisors is an integer number (653985657675).

Almost surely, 2^{20013630165654} is an apocalyptic number.

20013630165654 is an abundant number, since it is smaller than the sum of its proper divisors (21841451925546).

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

20013630165654 is a wasteful number, since it uses less digits than its factorization.

20013630165654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586577.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 20013630165654 its reverse (45656103631002), we get a palindrome (65669733796656).

The spelling of 20013630165654 in words is "twenty trillion, thirteen billion, six hundred thirty million, one hundred sixty-five thousand, six hundred fifty-four".