10656880 has 40 divisors (see below), whose sum is σ = 26685792. Its totient is φ = 3934464.

The previous prime is 10656859. The next prime is 10656907. The reversal of 10656880 is 8865601.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10656880² = 227138182668800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4084 + ... + 6163.

Almost surely, 2^10656880 is an apocalyptic number.

10656880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10656880 is an abundant number, since it is smaller than the sum of its proper divisors (16028912).

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

10656880 is a wasteful number, since it uses less digits than its factorization.

10656880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10273 (or 10267 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 10656880 is about 3264.4877086612. The cubic root of 10656880 is about 220.0611400318.

The spelling of 10656880 in words is "ten million, six hundred fifty-six thousand, eight hundred eighty".