216601301 has 32 divisors (see below), whose sum is σ = 271911168. Its totient is φ = 168330240.

The previous prime is 216601279. The next prime is 216601313. The reversal of 216601301 is 103106612.

216601301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 216601301 - 2¹⁰ = 216600277 is a prime.

It is a super-2 number, since 2×216601301² = 93832247189785202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216601381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384446 + ... + 385008.

It is an arithmetic number, because the mean of its divisors is an integer number (8497224).

Almost surely, 2^216601301 is an apocalyptic number.

It is an amenable number.

216601301 is a deficient number, since it is larger than the sum of its proper divisors (55309867).

216601301 is a wasteful number, since it uses less digits than its factorization.

216601301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 216601301 is about 14717.3809150949. The cubic root of 216601301 is about 600.5562443462.

Adding to 216601301 its reverse (103106612), we get a palindrome (319707913).

The spelling of 216601301 in words is "two hundred sixteen million, six hundred one thousand, three hundred one".