10661766 has 8 divisors (see below), whose sum is σ = 21323544. Its totient is φ = 3553920.

The previous prime is 10661747. The next prime is 10661773. The reversal of 10661766 is 66716601.

10661766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

10661766 is an admirable number.

It is a super-2 number, since 2×10661766² = 227346508477512, 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 3 ways as a sum of consecutive naturals, for example, 888475 + ... + 888486.

It is an arithmetic number, because the mean of its divisors is an integer number (2665443).

Almost surely, 2^10661766 is an apocalyptic number.

10661766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10661766 is a wasteful number, since it uses less digits than its factorization.

10661766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776966.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 10661766 is about 3265.2359792211. The cubic root of 10661766 is about 220.0947663355.

The spelling of 10661766 in words is "ten million, six hundred sixty-one thousand, seven hundred sixty-six".