216106260 has 48 divisors (see below), whose sum is σ = 625968000. Its totient is φ = 55640704.

The previous prime is 216106249. The next prime is 216106273. The reversal of 216106260 is 62601612.

It is a super-2 number, since 2×216106260² = 93403831222375200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216106260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60360 + ... + 63839.

It is an arithmetic number, because the mean of its divisors is an integer number (13041000).

Almost surely, 2^216106260 is an apocalyptic number.

216106260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216106260 is an abundant number, since it is smaller than the sum of its proper divisors (409861740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216106260 is a wasteful number, since it uses less digits than its factorization.

216106260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124240 (or 124238 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 216106260 is about 14700.5530508209. The cubic root of 216106260 is about 600.0983727593.

Adding to 216106260 its reverse (62601612), we get a palindrome (278707872).

The spelling of 216106260 in words is "two hundred sixteen million, one hundred six thousand, two hundred sixty".