216360561253 has 8 divisors (see below), whose sum is σ = 217881645696. Its totient is φ = 214844768400.

The previous prime is 216360561251. The next prime is 216360561271. The reversal of 216360561253 is 352165063612.

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 216360561253 - 2¹ = 216360561251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216360561251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240818 + ... + 1404403.

It is an arithmetic number, because the mean of its divisors is an integer number (27235205712).

Almost surely, 2^216360561253 is an apocalyptic number.

It is an amenable number.

216360561253 is a deficient number, since it is larger than the sum of its proper divisors (1521084443).

216360561253 is a wasteful number, since it uses less digits than its factorization.

216360561253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645795.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 216360561253 in words is "two hundred sixteen billion, three hundred sixty million, five hundred sixty-one thousand, two hundred fifty-three".