10216664 has 8 divisors (see below), whose sum is σ = 19156260. Its totient is φ = 5108328.

The previous prime is 10216663. The next prime is 10216691. The reversal of 10216664 is 46661201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10216663) by changing a digit.

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 as a sum of consecutive naturals, namely, 638534 + ... + 638549.

Almost surely, 2^10216664 is an apocalyptic number.

It is an amenable number.

10216664 is a deficient number, since it is larger than the sum of its proper divisors (8939596).

10216664 is a wasteful number, since it uses less digits than its factorization.

10216664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277089 (or 1277085 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 10216664 is about 3196.3516702641. The cubic root of 10216664 is about 216.9883264406.

Adding to 10216664 its reverse (46661201), we get a palindrome (56877865).

The spelling of 10216664 in words is "ten million, two hundred sixteen thousand, six hundred sixty-four".