259645663632 has 40 divisors (see below), whose sum is σ = 670770685984. Its totient is φ = 86546052864.

The previous prime is 259645663619. The next prime is 259645663637. The reversal of 259645663632 is 236366546952.

It is not an unprimeable number, because it can be changed into a prime (259645663637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2427963 + ... + 2532645.

Almost surely, 2^259645663632 is an apocalyptic number.

It is an amenable number.

259645663632 is an abundant number, since it is smaller than the sum of its proper divisors (411125022352).

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

259645663632 is a wasteful number, since it uses less digits than its factorization.

259645663632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156367 (or 156361 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 57.

The spelling of 259645663632 in words is "two hundred fifty-nine billion, six hundred forty-five million, six hundred sixty-three thousand, six hundred thirty-two".