260644469760 has 440 divisors, whose sum is σ = 949406067456. Its totient is φ = 68359127040.

The previous prime is 260644469747. The next prime is 260644469777. The reversal of 260644469760 is 67964446062.

It is a happy number.

260644469760 is a `hidden beast` number, since 2 + 60 + 64 + 4 + 469 + 7 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 260644469697 and 260644469706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 25292769 + ... + 25303071.

Almost surely, 2^260644469760 is an apocalyptic number.

260644469760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260644469760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474703033728).

260644469760 is an abundant number, since it is smaller than the sum of its proper divisors (688761597696).

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

260644469760 is a wasteful number, since it uses less digits than its factorization.

260644469760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401 (or 10374 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 260644469760 in words is "two hundred sixty billion, six hundred forty-four million, four hundred sixty-nine thousand, seven hundred sixty".