659198243688 has 32 divisors (see below), whose sum is σ = 1662579648000. Its totient is φ = 217788209408.

The previous prime is 659198243687. The next prime is 659198243689. The reversal of 659198243688 is 886342891956.

It is an interprime number because it is at equal distance from previous prime (659198243687) and next prime (659198243689).

It is not an unprimeable number, because it can be changed into a prime (659198243687) 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, 121530888 + ... + 121536311.

It is an arithmetic number, because the mean of its divisors is an integer number (51955614000).

Almost surely, 2^659198243688 is an apocalyptic number.

It is an amenable number.

659198243688 is an abundant number, since it is smaller than the sum of its proper divisors (1003381404312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

659198243688 is a wasteful number, since it uses less digits than its factorization.

659198243688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243067321 (or 243067317 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 69.

The spelling of 659198243688 in words is "six hundred fifty-nine billion, one hundred ninety-eight million, two hundred forty-three thousand, six hundred eighty-eight".