10981660 has 24 divisors (see below), whose sum is σ = 24418800. Its totient is φ = 4134144.

The previous prime is 10981651. The next prime is 10981667. The reversal of 10981660 is 6618901.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15810 + ... + 16489.

It is an arithmetic number, because the mean of its divisors is an integer number (1017450).

Almost surely, 2^10981660 is an apocalyptic number.

10981660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10981660 is an abundant number, since it is smaller than the sum of its proper divisors (13437140).

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

10981660 is a wasteful number, since it uses less digits than its factorization.

10981660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32325 (or 32323 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 10981660 is about 3313.8587779204. The cubic root of 10981660 is about 222.2743409236.

The spelling of 10981660 in words is "ten million, nine hundred eighty-one thousand, six hundred sixty".