20146113571 has 8 divisors (see below), whose sum is σ = 20372393088. Its totient is φ = 19920360000.

The previous prime is 20146113569. The next prime is 20146113599. The reversal of 20146113571 is 17531164102.

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

It is a cyclic number.

It is not a de Polignac number, because 20146113571 - 2¹ = 20146113569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20146113541) 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, 54195 + ... + 207916.

It is an arithmetic number, because the mean of its divisors is an integer number (2546549136).

Almost surely, 2^20146113571 is an apocalyptic number.

20146113571 is a deficient number, since it is larger than the sum of its proper divisors (226279517).

20146113571 is a wasteful number, since it uses less digits than its factorization.

20146113571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262973.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 20146113571 its reverse (17531164102), we get a palindrome (37677277673).

The spelling of 20146113571 in words is "twenty billion, one hundred forty-six million, one hundred thirteen thousand, five hundred seventy-one".