10865505320 has 32 divisors (see below), whose sum is σ = 24639897600. Its totient is φ = 4311978048.

The previous prime is 10865505289. The next prime is 10865505323. The reversal of 10865505320 is 2350556801.

It is not an unprimeable number, because it can be changed into a prime (10865505323) 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, 1064360 + ... + 1074519.

It is an arithmetic number, because the mean of its divisors is an integer number (769996800).

Almost surely, 2^10865505320 is an apocalyptic number.

10865505320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10865505320 is an abundant number, since it is smaller than the sum of its proper divisors (13774392280).

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

10865505320 is a wasteful number, since it uses less digits than its factorization.

10865505320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139017 (or 2139013 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 10865505320 in words is "ten billion, eight hundred sixty-five million, five hundred five thousand, three hundred twenty".