216726016 has 40 divisors (see below), whose sum is σ = 466352964. Its totient is φ = 100024320.

The previous prime is 216726001. The next prime is 216726043. The reversal of 216726016 is 610627612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 216207616 + 518400 = 14704^2 + 720^2 .

It is a super-2 number, since 2×216726016² = 93940332022464512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9625 + ... + 22936.

Almost surely, 2^216726016 is an apocalyptic number.

216726016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

216726016 is an abundant number, since it is smaller than the sum of its proper divisors (249626948).

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

216726016 is an equidigital number, since it uses as much as digits as its factorization.

216726016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32592 (or 32576 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 216726016 is about 14721.6173024570. The cubic root of 216726016 is about 600.6714852693.

The spelling of 216726016 in words is "two hundred sixteen million, seven hundred twenty-six thousand, sixteen".