166652423 has 8 divisors (see below), whose sum is σ = 190594560. Its totient is φ = 142743960.

The previous prime is 166652419. The next prime is 166652443. The reversal of 166652423 is 324256661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166652423 - 2² = 166652419 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 (166652443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3278 + ... + 18548.

It is an arithmetic number, because the mean of its divisors is an integer number (23824320).

Almost surely, 2^166652423 is an apocalyptic number.

166652423 is a deficient number, since it is larger than the sum of its proper divisors (23942137).

166652423 is a wasteful number, since it uses less digits than its factorization.

166652423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16837.

The product of its digits is 51840, while the sum is 35.

The square root of 166652423 is about 12909.3928207333. The cubic root of 166652423 is about 550.3055305188.

The spelling of 166652423 in words is "one hundred sixty-six million, six hundred fifty-two thousand, four hundred twenty-three".