63345384665 has 8 divisors (see below), whose sum is σ = 76180797960. Its totient is φ = 50565416832.

The previous prime is 63345384653. The next prime is 63345384671. The reversal of 63345384665 is 56648354336.

It can be written as a sum of positive squares in 4 ways, for example, as 20679590416 + 42665794249 = 143804^2 + 206557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63345384665 - 2⁶ = 63345384601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13858850 + ... + 13863419.

It is an arithmetic number, because the mean of its divisors is an integer number (9522599745).

Almost surely, 2^63345384665 is an apocalyptic number.

It is an amenable number.

63345384665 is a deficient number, since it is larger than the sum of its proper divisors (12835413295).

63345384665 is a wasteful number, since it uses less digits than its factorization.

63345384665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27722731.

The product of its digits is 18662400, while the sum is 53.

The spelling of 63345384665 in words is "sixty-three billion, three hundred forty-five million, three hundred eighty-four thousand, six hundred sixty-five".