10865322720 has 288 divisors, whose sum is σ = 44238247200. Its totient is φ = 2483453952.

The previous prime is 10865322707. The next prime is 10865322763. The reversal of 10865322720 is 2722356801.

10865322720 is a `hidden beast` number, since 1 + 0 + 86 + 532 + 27 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186016 + ... + 237344.

It is an arithmetic number, because the mean of its divisors is an integer number (153605025).

Almost surely, 2^10865322720 is an apocalyptic number.

10865322720 is a gapful number since it is divisible by the number (10) 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 10865322720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22119123600).

10865322720 is an abundant number, since it is smaller than the sum of its proper divisors (33372924480).

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

10865322720 is a wasteful number, since it uses less digits than its factorization.

10865322720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51367 (or 51346 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 10865322720 in words is "ten billion, eight hundred sixty-five million, three hundred twenty-two thousand, seven hundred twenty".