1665283605063 has 16 divisors (see below), whose sum is σ = 2393455999200. Its totient is φ = 1023812964864.

The previous prime is 1665283605059. The next prime is 1665283605079. The reversal of 1665283605063 is 3605063825661.

It is not a de Polignac number, because 1665283605063 - 2² = 1665283605059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1665283604997 and 1665283605015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665283605463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20311606 + ... + 20393427.

It is an arithmetic number, because the mean of its divisors is an integer number (149590999950).

Almost surely, 2^{1665283605063} is an apocalyptic number.

1665283605063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1665283605063 is a deficient number, since it is larger than the sum of its proper divisors (728172394137).

1665283605063 is a wasteful number, since it uses less digits than its factorization.

1665283605063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40706098.

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 1665283605063 in words is "one trillion, six hundred sixty-five billion, two hundred eighty-three million, six hundred five thousand, sixty-three".