63336650665 has 16 divisors (see below), whose sum is σ = 76397948928. Its totient is φ = 50406993216.

The previous prime is 63336650647. The next prime is 63336650687. The reversal of 63336650665 is 56605663336.

It is a cyclic number.

It is not a de Polignac number, because 63336650665 - 2²⁹ = 62799779753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645672 + ... + 1683718.

It is an arithmetic number, because the mean of its divisors is an integer number (4774871808).

Almost surely, 2^63336650665 is an apocalyptic number.

It is an amenable number.

63336650665 is a deficient number, since it is larger than the sum of its proper divisors (13061298263).

63336650665 is a wasteful number, since it uses less digits than its factorization.

63336650665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39768.

The product of its (nonzero) digits is 5248800, while the sum is 49.

The spelling of 63336650665 in words is "sixty-three billion, three hundred thirty-six million, six hundred fifty thousand, six hundred sixty-five".