659649496 has 32 divisors (see below), whose sum is σ = 1392814080. Its totient is φ = 290167200.

The previous prime is 659649493. The next prime is 659649509. The reversal of 659649496 is 694946956.

It is a self number, because there is not a number n which added to its sum of digits gives 659649496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659649491) 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, 118176 + ... + 123631.

It is an arithmetic number, because the mean of its divisors is an integer number (43525440).

Almost surely, 2^659649496 is an apocalyptic number.

It is an amenable number.

659649496 is an abundant number, since it is smaller than the sum of its proper divisors (733164584).

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

659649496 is a wasteful number, since it uses less digits than its factorization.

659649496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241855 (or 241851 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 58.

The square root of 659649496 is about 25683.6425765505. The cubic root of 659649496 is about 870.5046158755.

The spelling of 659649496 in words is "six hundred fifty-nine million, six hundred forty-nine thousand, four hundred ninety-six".