166041023 has 8 divisors (see below), whose sum is σ = 176695200. Its totient is φ = 155485440.

The previous prime is 166041013. The next prime is 166041061. The reversal of 166041023 is 320140661.

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 166041023 - 2¹⁶ = 165975487 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 166041023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166041013) 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, 21158 + ... + 27923.

It is an arithmetic number, because the mean of its divisors is an integer number (22086900).

Almost surely, 2^166041023 is an apocalyptic number.

166041023 is a deficient number, since it is larger than the sum of its proper divisors (10654177).

166041023 is a wasteful number, since it uses less digits than its factorization.

166041023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49297.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 166041023 is about 12885.6906295317. The cubic root of 166041023 is about 549.6317347417.

Adding to 166041023 its reverse (320140661), we get a palindrome (486181684).

It can be divided in two parts, 1660410 and 23, that multiplied together give a triangular number (38189430 = T₈₇₃₉).

The spelling of 166041023 in words is "one hundred sixty-six million, forty-one thousand, twenty-three".