641146113111 has 128 divisors (see below), whose sum is σ = 1100213452800. Its totient is φ = 323709281280.

The previous prime is 641146113109. The next prime is 641146113121. The reversal of 641146113111 is 111311641146.

It is not a de Polignac number, because 641146113111 - 2¹ = 641146113109 is a prime.

It is a super-2 number, since 2×641146113111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641146113121) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 244991475 + ... + 244994091.

It is an arithmetic number, because the mean of its divisors is an integer number (8595417600).

Almost surely, 2^641146113111 is an apocalyptic number.

641146113111 is a deficient number, since it is larger than the sum of its proper divisors (459067339689).

641146113111 is a wasteful number, since it uses less digits than its factorization.

641146113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its digits is 1728, while the sum is 30.

Adding to 641146113111 its reverse (111311641146), we get a palindrome (752457754257).

The spelling of 641146113111 in words is "six hundred forty-one billion, one hundred forty-six million, one hundred thirteen thousand, one hundred eleven".