53206341665 has 8 divisors (see below), whose sum is σ = 63866638080. Its totient is φ = 42552387952.

The previous prime is 53206341647. The next prime is 53206341679. The reversal of 53206341665 is 56614360235.

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 53206341665 - 2¹⁴ = 53206325281 is a prime.

It is a Curzon 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, 1567199 + ... + 1600788.

It is an arithmetic number, because the mean of its divisors is an integer number (7983329760).

Almost surely, 2^53206341665 is an apocalyptic number.

It is an amenable number.

53206341665 is a deficient number, since it is larger than the sum of its proper divisors (10660296415).

53206341665 is a wasteful number, since it uses less digits than its factorization.

53206341665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171351.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 53206341665 in words is "fifty-three billion, two hundred six million, three hundred forty-one thousand, six hundred sixty-five".