216253641 has 8 divisors (see below), whose sum is σ = 296131264. Its totient is φ = 140272560.

The previous prime is 216253619. The next prime is 216253657. The reversal of 216253641 is 146352612.

216253641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 216253641 - 2¹¹ = 216251593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216253599 and 216253608.

It is not an unprimeable number, because it can be changed into a prime (216253691) 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, 974005 + ... + 974226.

It is an arithmetic number, because the mean of its divisors is an integer number (37016408).

Almost surely, 2^216253641 is an apocalyptic number.

It is an amenable number.

216253641 is a deficient number, since it is larger than the sum of its proper divisors (79877623).

216253641 is a wasteful number, since it uses less digits than its factorization.

216253641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948271.

The product of its digits is 8640, while the sum is 30.

The square root of 216253641 is about 14705.5649670456. The cubic root of 216253641 is about 600.2347609113.

The spelling of 216253641 in words is "two hundred sixteen million, two hundred fifty-three thousand, six hundred forty-one".