166652653 has 4 divisors (see below), whose sum is σ = 167442688. Its totient is φ = 165862620.

The previous prime is 166652623. The next prime is 166652677. The reversal of 166652653 is 356256661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166652653 - 2¹³ = 166644461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166652623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394701 + ... + 395122.

It is an arithmetic number, because the mean of its divisors is an integer number (41860672).

Almost surely, 2^166652653 is an apocalyptic number.

It is an amenable number.

166652653 is a deficient number, since it is larger than the sum of its proper divisors (790035).

166652653 is an equidigital number, since it uses as much as digits as its factorization.

166652653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790034.

The product of its digits is 194400, while the sum is 40.

The square root of 166652653 is about 12909.4017289726. The cubic root of 166652653 is about 550.3057836808.

The spelling of 166652653 in words is "one hundred sixty-six million, six hundred fifty-two thousand, six hundred fifty-three".