63285203665 has 16 divisors (see below), whose sum is σ = 78116048640. Its totient is φ = 49194460800.

The previous prime is 63285203651. The next prime is 63285203671. The reversal of 63285203665 is 56630258236.

It is a de Polignac number, because none of the positive numbers 2^k-63285203665 is a prime.

It is an unprimeable number.

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, 936036 + ... + 1001365.

It is an arithmetic number, because the mean of its divisors is an integer number (4882253040).

Almost surely, 2^63285203665 is an apocalyptic number.

It is an amenable number.

63285203665 is a deficient number, since it is larger than the sum of its proper divisors (14830844975).

63285203665 is a wasteful number, since it uses less digits than its factorization.

63285203665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937592.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 63285203665 in words is "sixty-three billion, two hundred eighty-five million, two hundred three thousand, six hundred sixty-five".