1065903784512 has 56 divisors (see below), whose sum is σ = 3223090019136. Its totient is φ = 304543938048.

The previous prime is 1065903784511. The next prime is 1065903784529. The reversal of 1065903784512 is 2154873095601.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1065903784512² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065903784511) 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, 396540243 + ... + 396542930.

It is a 2-persistent number, because it is pandigital, and so is 2⋅1065903784512 = 2131807569024, but 3⋅1065903784512 = 3197711353536 is not.

Almost surely, 2^{1065903784512} is an apocalyptic number.

1065903784512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1065903784512 is an abundant number, since it is smaller than the sum of its proper divisors (2157186234624).

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

1065903784512 is an equidigital number, since it uses as much as digits as its factorization.

1065903784512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793083195 (or 793083185 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 1065903784512 in words is "one trillion, sixty-five billion, nine hundred three million, seven hundred eighty-four thousand, five hundred twelve".