166465324445 has 64 divisors (see below), whose sum is σ = 237796922880. Its totient is φ = 109497830400.

The previous prime is 166465324393. The next prime is 166465324447. The reversal of 166465324445 is 544423564661.

It is a happy number.

It is not a de Polignac number, because 166465324445 - 2¹⁰ = 166465323421 is a prime.

It is a super-2 number, since 2×166465324445² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166465324393 and 166465324402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166465324447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97404251 + ... + 97405959.

It is an arithmetic number, because the mean of its divisors is an integer number (3715576920).

Almost surely, 2^166465324445 is an apocalyptic number.

It is an amenable number.

166465324445 is a deficient number, since it is larger than the sum of its proper divisors (71331598435).

166465324445 is a wasteful number, since it uses less digits than its factorization.

166465324445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886.

The product of its digits is 8294400, while the sum is 50.

The spelling of 166465324445 in words is "one hundred sixty-six billion, four hundred sixty-five million, three hundred twenty-four thousand, four hundred forty-five".