1065506267625 has 64 divisors (see below), whose sum is σ = 1786013798400. Its totient is φ = 564106732800.

The previous prime is 1065506267621. The next prime is 1065506267669. The reversal of 1065506267625 is 5267626055601.

It is not a de Polignac number, because 1065506267625 - 2² = 1065506267621 is a prime.

It is a super-2 number, since 2×1065506267625² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1065506267621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65284216 + ... + 65300534.

It is an arithmetic number, because the mean of its divisors is an integer number (27906465600).

Almost surely, 2^{1065506267625} is an apocalyptic number.

1065506267625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1065506267625 is a deficient number, since it is larger than the sum of its proper divisors (720507530775).

1065506267625 is a wasteful number, since it uses less digits than its factorization.

1065506267625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17603 (or 17593 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 1065506267625 in words is "one trillion, sixty-five billion, five hundred six million, two hundred sixty-seven thousand, six hundred twenty-five".