166526443 has 4 divisors (see below), whose sum is σ = 166576648. Its totient is φ = 166476240.

The previous prime is 166526413. The next prime is 166526473. The reversal of 166526443 is 344625661.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (166526413) and next prime (166526473).

It is a cyclic number.

It is not a de Polignac number, because 166526443 - 2⁵ = 166526411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166526413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19746 + ... + 26887.

It is an arithmetic number, because the mean of its divisors is an integer number (41644162).

Almost surely, 2^166526443 is an apocalyptic number.

166526443 is a deficient number, since it is larger than the sum of its proper divisors (50205).

166526443 is an equidigital number, since it uses as much as digits as its factorization.

166526443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50204.

The product of its digits is 103680, while the sum is 37.

The square root of 166526443 is about 12904.5125053215. The cubic root of 166526443 is about 550.1668287304.

The spelling of 166526443 in words is "one hundred sixty-six million, five hundred twenty-six thousand, four hundred forty-three".