6166640 has 40 divisors (see below), whose sum is σ = 15095760. Its totient is φ = 2336256.

The previous prime is 6166639. The next prime is 6166669. The reversal of 6166640 is 466616.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509 + ... + 3548.

It is an arithmetic number, because the mean of its divisors is an integer number (377394).

Almost surely, 2^6166640 is an apocalyptic number.

It is an amenable number.

6166640 is an abundant number, since it is smaller than the sum of its proper divisors (8929120).

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

6166640 is a wasteful number, since it uses less digits than its factorization.

6166640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6166640 is about 2483.2720350376. The cubic root of 6166640 is about 183.3789711911.

The spelling of 6166640 in words is "six million, one hundred sixty-six thousand, six hundred forty".