10666988 has 6 divisors (see below), whose sum is σ = 18667236. Its totient is φ = 5333492.

The previous prime is 10666987. The next prime is 10667021. The reversal of 10666988 is 88966601.

10666988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10666988² = 227569265984288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10666987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333370 + ... + 1333377.

It is an arithmetic number, because the mean of its divisors is an integer number (3111206).

Almost surely, 2^10666988 is an apocalyptic number.

It is an amenable number.

10666988 is a deficient number, since it is larger than the sum of its proper divisors (8000248).

10666988 is a wasteful number, since it uses less digits than its factorization.

10666988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666751 (or 2666749 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 10666988 is about 3266.0355172594. The cubic root of 10666988 is about 220.1306936943.

The spelling of 10666988 in words is "ten million, six hundred sixty-six thousand, nine hundred eighty-eight".