217165252071053 has 8 divisors (see below), whose sum is σ = 255131205230496. Its totient is φ = 182236575164400.

The previous prime is 217165252071041. The next prime is 217165252071107. The reversal of 217165252071053 is 350170252561712.

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 217165252071053 - 2⁶ = 217165252070989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 217165252070989 and 217165252071007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217165252011053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759319063043 + ... + 759319063328.

It is an arithmetic number, because the mean of its divisors is an integer number (31891400653812).

Almost surely, 2^{217165252071053} is an apocalyptic number.

It is an amenable number.

217165252071053 is a deficient number, since it is larger than the sum of its proper divisors (37965953159443).

217165252071053 is a wasteful number, since it uses less digits than its factorization.

217165252071053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518638126395.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 217165252071053 in words is "two hundred seventeen trillion, one hundred sixty-five billion, two hundred fifty-two million, seventy-one thousand, fifty-three".