216662010 has 64 divisors (see below), whose sum is σ = 545536512. Its totient is φ = 55005696.

The previous prime is 216662009. The next prime is 216662023. The reversal of 216662010 is 10266612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50094 + ... + 54246.

It is an arithmetic number, because the mean of its divisors is an integer number (8524008).

Almost surely, 2^216662010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216662010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272768256).

216662010 is an abundant number, since it is smaller than the sum of its proper divisors (328874502).

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

216662010 is a wasteful number, since it uses less digits than its factorization.

216662010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247.

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

The square root of 216662010 is about 14719.4432639282. The cubic root of 216662010 is about 600.6123470614.

The spelling of 216662010 in words is "two hundred sixteen million, six hundred sixty-two thousand, ten".