166452413 has 4 divisors (see below), whose sum is σ = 166549440. Its totient is φ = 166355388.

The previous prime is 166452401. The next prime is 166452443. The reversal of 166452413 is 314254661.

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 166452413 - 2²⁰ = 165403837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166452413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166452443) 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, 45893 + ... + 49386.

It is an arithmetic number, because the mean of its divisors is an integer number (41637360).

Almost surely, 2^166452413 is an apocalyptic number.

It is an amenable number.

166452413 is a deficient number, since it is larger than the sum of its proper divisors (97027).

166452413 is an equidigital number, since it uses as much as digits as its factorization.

166452413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97026.

The product of its digits is 17280, while the sum is 32.

The square root of 166452413 is about 12901.6438099957. The cubic root of 166452413 is about 550.0852903543.

The spelling of 166452413 in words is "one hundred sixty-six million, four hundred fifty-two thousand, four hundred thirteen".