659140881 has 16 divisors (see below), whose sum is σ = 1063488384. Its totient is φ = 354495744.

The previous prime is 659140849. The next prime is 659140891. The reversal of 659140881 is 188041956.

It is not a de Polignac number, because 659140881 - 2⁵ = 659140849 is a prime.

It is a super-2 number, since 2×659140881² = 868933402010912322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (659140891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922810 + ... + 923523.

It is an arithmetic number, because the mean of its divisors is an integer number (66468024).

Almost surely, 2^659140881 is an apocalyptic number.

It is an amenable number.

659140881 is a deficient number, since it is larger than the sum of its proper divisors (404347503).

659140881 is a wasteful number, since it uses less digits than its factorization.

659140881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846360.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 659140881 is about 25673.7391316497. The cubic root of 659140881 is about 870.2808275609.

The spelling of 659140881 in words is "six hundred fifty-nine million, one hundred forty thousand, eight hundred eighty-one".