10216656 has 30 divisors (see below), whose sum is σ = 28592850. Its totient is φ = 3405504.

The previous prime is 10216649. The next prime is 10216663. The reversal of 10216656 is 65661201.

It is a happy number.

10216656 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 6 + 656 = 666.

10216656 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10216649) and next prime (10216663).

It can be written as a sum of positive squares in only one way, i.e., 9511056 + 705600 = 3084^2 + 840^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35331 + ... + 35618.

It is an arithmetic number, because the mean of its divisors is an integer number (953095).

Almost surely, 2^10216656 is an apocalyptic number.

10216656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10216656 is an abundant number, since it is smaller than the sum of its proper divisors (18376194).

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

10216656 is a wasteful number, since it uses less digits than its factorization.

10216656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70963 (or 70954 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 10216656 is about 3196.3504188371. The cubic root of 10216656 is about 216.9882698042.

Adding to 10216656 its reverse (65661201), we get a palindrome (75877857).

The spelling of 10216656 in words is "ten million, two hundred sixteen thousand, six hundred fifty-six".