166224914941 has 8 divisors (see below), whose sum is σ = 176032385784. Its totient is φ = 156420725760.

The previous prime is 166224914929. The next prime is 166224914957. The reversal of 166224914941 is 149419422661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 274598041 + 165950316900 = 16571^2 + 407370^2 .

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 166224914941 - 2¹⁹ = 166224390653 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 (166224914641) 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, 715740 + ... + 919093.

It is an arithmetic number, because the mean of its divisors is an integer number (22004048223).

Almost surely, 2^166224914941 is an apocalyptic number.

It is an amenable number.

166224914941 is a deficient number, since it is larger than the sum of its proper divisors (9807470843).

166224914941 is a wasteful number, since it uses less digits than its factorization.

166224914941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640831.

The product of its digits is 746496, while the sum is 49.

The spelling of 166224914941 in words is "one hundred sixty-six billion, two hundred twenty-four million, nine hundred fourteen thousand, nine hundred forty-one".