10166640 has 80 divisors (see below), whose sum is σ = 34390656. Its totient is φ = 2464000.

The previous prime is 10166627. The next prime is 10166657. The reversal of 10166640 is 4666101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10166640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 715 + ... + 4565.

Almost surely, 2^10166640 is an apocalyptic number.

10166640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10166640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17195328).

10166640 is an abundant number, since it is smaller than the sum of its proper divisors (24224016).

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

10166640 is a wasteful number, since it uses less digits than its factorization.

10166640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878 (or 3872 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10166640 is about 3188.5168966151. The cubic root of 10166640 is about 216.6335991613.

The spelling of 10166640 in words is "ten million, one hundred sixty-six thousand, six hundred forty".