20163665734131 has 8 divisors (see below), whose sum is σ = 26885134819984. Its totient is φ = 13442320235520.

The previous prime is 20163665734111. The next prime is 20163665734133. The reversal of 20163665734131 is 13143756636102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20163665734131 - 2⁶ = 20163665734067 is a prime.

It is a super-2 number, since 2×20163665734131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20163665734133) 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, 30515446 + ... + 31169211.

It is an arithmetic number, because the mean of its divisors is an integer number (3360641852498).

Almost surely, 2^{20163665734131} is an apocalyptic number.

20163665734131 is a deficient number, since it is larger than the sum of its proper divisors (6721469085853).

20163665734131 is a wasteful number, since it uses less digits than its factorization.

20163665734131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61793621.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 20163665734131 in words is "twenty trillion, one hundred sixty-three billion, six hundred sixty-five million, seven hundred thirty-four thousand, one hundred thirty-one".