653166 has 24 divisors (see below), whose sum is σ = 1431144. Its totient is φ = 215280.

The previous prime is 653153. The next prime is 653197. The reversal of 653166 is 661356.

653166 is a `hidden beast` number, since 653 + 1 + 6 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2220 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (59631).

2⁶⁵³¹⁶⁶ is an apocalyptic number.

653166 is an abundant number, since it is smaller than the sum of its proper divisors (777978).

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

653166 is a wasteful number, since it uses less digits than its factorization.

653166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 413 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 653166 is about 808.1868595814. The cubic root of 653166 is about 86.7643244983.

The spelling of 653166 in words is "six hundred fifty-three thousand, one hundred sixty-six".