7166660 has 24 divisors (see below), whose sum is σ = 15336216. Its totient is φ = 2812160.

The previous prime is 7166659. The next prime is 7166689. The reversal of 7166660 is 666617.

It can be written as a sum of positive squares in 4 ways, for example, as 2256004 + 4910656 = 1502^2 + 2216^2 .

It is a super-2 number, since 2×7166660² = 102722031111200, which contains 22 as substring.

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, 2321 + ... + 4440.

It is an arithmetic number, because the mean of its divisors is an integer number (639009).

Almost surely, 2^7166660 is an apocalyptic number.

It is an amenable number.

7166660 is an abundant number, since it is smaller than the sum of its proper divisors (8169556).

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

7166660 is a wasteful number, since it uses less digits than its factorization.

7166660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823 (or 6821 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 7166660 is about 2677.0618222223. The cubic root of 7166660 is about 192.7993655391.

The spelling of 7166660 in words is "seven million, one hundred sixty-six thousand, six hundred sixty".