1565065006656 has 28 divisors (see below), whose sum is σ = 4140901163952. Its totient is φ = 521688335488.

The previous prime is 1565065006639. The next prime is 1565065006709. The reversal of 1565065006656 is 6566005605651.

It is a junction number, because it is equal to n+sod(n) for n = 1565065006599 and 1565065006608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075689930 + ... + 4075690313.

It is an arithmetic number, because the mean of its divisors is an integer number (147889327284).

Almost surely, 2^{1565065006656} is an apocalyptic number.

1565065006656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1565065006656 is an abundant number, since it is smaller than the sum of its proper divisors (2575836157296).

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

1565065006656 is an equidigital number, since it uses as much as digits as its factorization.

1565065006656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8151380258 (or 8151380248 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 1565065006656 in words is "one trillion, five hundred sixty-five billion, sixty-five million, six thousand, six hundred fifty-six".