259969008640 has 88 divisors (see below), whose sum is σ = 680313932352. Its totient is φ = 94534164480.

The previous prime is 259969008623. The next prime is 259969008661. The reversal of 259969008640 is 46800969952.

It is a tau number, because it is divible by the number of its divisors (88).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251644 + ... + 2364283.

Almost surely, 2^259969008640 is an apocalyptic number.

259969008640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259969008640 is an abundant number, since it is smaller than the sum of its proper divisors (420344923712).

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

259969008640 is a wasteful number, since it uses less digits than its factorization.

259969008640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615963 (or 4615945 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 259969008640 in words is "two hundred fifty-nine billion, nine hundred sixty-nine million, eight thousand, six hundred forty".