10215664 has 20 divisors (see below), whose sum is σ = 19842480. Its totient is φ = 5095040.

The previous prime is 10215661. The next prime is 10215671. The reversal of 10215664 is 46651201.

10215664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11757 + ... + 12595.

It is an arithmetic number, because the mean of its divisors is an integer number (992124).

Almost surely, 2^10215664 is an apocalyptic number.

It is an amenable number.

10215664 is a deficient number, since it is larger than the sum of its proper divisors (9626816).

10215664 is an equidigital number, since it uses as much as digits as its factorization.

10215664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 10215664 is about 3196.1952380917. The cubic root of 10215664 is about 216.9812466539.

Adding to 10215664 its reverse (46651201), we get a palindrome (56866865).

The spelling of 10215664 in words is "ten million, two hundred fifteen thousand, six hundred sixty-four".