53205027665 has 8 divisors (see below), whose sum is σ = 65905582848. Its totient is φ = 41190989040.

The previous prime is 53205027613. The next prime is 53205027703. The reversal of 53205027665 is 56672050235.

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-53205027665 is a prime.

It is a Duffinian number.

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, 171628967 + ... + 171629276.

It is an arithmetic number, because the mean of its divisors is an integer number (8238197856).

Almost surely, 2^53205027665 is an apocalyptic number.

It is an amenable number.

53205027665 is a deficient number, since it is larger than the sum of its proper divisors (12700555183).

53205027665 is a wasteful number, since it uses less digits than its factorization.

53205027665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343258279.

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 53205027665 in words is "fifty-three billion, two hundred five million, twenty-seven thousand, six hundred sixty-five".