53605604665 has 8 divisors (see below), whose sum is σ = 64328479488. Its totient is φ = 42883314480.

The previous prime is 53605604641. The next prime is 53605604669. The reversal of 53605604665 is 56640650635.

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

It is a de Polignac number, because none of the positive numbers 2^k-53605604665 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53605604669) 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 7 ways as a sum of consecutive naturals, for example, 90360 + ... + 339670.

It is an arithmetic number, because the mean of its divisors is an integer number (8041059936).

Almost surely, 2^53605604665 is an apocalyptic number.

It is an amenable number.

53605604665 is a deficient number, since it is larger than the sum of its proper divisors (10722874823).

53605604665 is a wasteful number, since it uses less digits than its factorization.

53605604665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292319.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 53605604665 in words is "fifty-three billion, six hundred five million, six hundred four thousand, six hundred sixty-five".