10666550 has 24 divisors (see below), whose sum is σ = 19927296. Its totient is φ = 4247840.

The previous prime is 10666547. The next prime is 10666559. The reversal of 10666550 is 5566601.

It is a super-2 number, since 2×10666550² = 227550577805000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18872 + ... + 19428.

It is an arithmetic number, because the mean of its divisors is an integer number (830304).

Almost surely, 2^10666550 is an apocalyptic number.

10666550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10666550 is a deficient number, since it is larger than the sum of its proper divisors (9260746).

10666550 is a wasteful number, since it uses less digits than its factorization.

10666550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 10666550 is about 3265.9684627994. The cubic root of 10666550 is about 220.1276807050.

The spelling of 10666550 in words is "ten million, six hundred sixty-six thousand, five hundred fifty".