259065664 has 56 divisors (see below), whose sum is σ = 603979488. Its totient is φ = 108695040.

The previous prime is 259065661. The next prime is 259065679. The reversal of 259065664 is 466560952.

It is a self number, because there is not a number n which added to its sum of digits gives 259065664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259065661) 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, 5002 + ... + 23305.

It is an arithmetic number, because the mean of its divisors is an integer number (10785348).

Almost surely, 2^259065664 is an apocalyptic number.

It is an amenable number.

259065664 is an abundant number, since it is smaller than the sum of its proper divisors (344913824).

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

259065664 is a wasteful number, since it uses less digits than its factorization.

259065664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28343 (or 28333 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 259065664 is about 16095.5168913583. The cubic root of 259065664 is about 637.4849733226.

The spelling of 259065664 in words is "two hundred fifty-nine million, sixty-five thousand, six hundred sixty-four".