659343912878 has 24 divisors (see below), whose sum is σ = 1150738903512. Its totient is φ = 282514299984.

The previous prime is 659343912823. The next prime is 659343912883. The reversal of 659343912878 is 878219343956.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281276 + ... + 1182287.

It is an arithmetic number, because the mean of its divisors is an integer number (47947454313).

Almost surely, 2^659343912878 is an apocalyptic number.

659343912878 is a deficient number, since it is larger than the sum of its proper divisors (491394990634).

659343912878 is a wasteful number, since it uses less digits than its factorization.

659343912878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468176 (or 1468169 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 65.

The spelling of 659343912878 in words is "six hundred fifty-nine billion, three hundred forty-three million, nine hundred twelve thousand, eight hundred seventy-eight".