128008071061 has 32 divisors (see below), whose sum is σ = 152511932160. Its totient is φ = 106234512384.

The previous prime is 128008071041. The next prime is 128008071101. The reversal of 128008071061 is 160170800821.

It is not a de Polignac number, because 128008071061 - 2³³ = 119418136469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128008071001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3912870 + ... + 3945448.

It is an arithmetic number, because the mean of its divisors is an integer number (4765997880).

Almost surely, 2^128008071061 is an apocalyptic number.

It is an amenable number.

128008071061 is a deficient number, since it is larger than the sum of its proper divisors (24503861099).

128008071061 is a wasteful number, since it uses less digits than its factorization.

128008071061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33405.

The product of its (nonzero) digits is 5376, while the sum is 34.

Adding to 128008071061 its reverse (160170800821), we get a palindrome (288178871882).

The spelling of 128008071061 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, sixty-one".