166443369468 has 24 divisors (see below), whose sum is σ = 388390254672. Its totient is φ = 55477924224.

The previous prime is 166443369437. The next prime is 166443369473. The reversal of 166443369468 is 864963344661.

It is a happy number.

It is a super-2 number, since 2×166443369468² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178155 + ... + 603842.

It is an arithmetic number, because the mean of its divisors is an integer number (16182927278).

Almost surely, 2^166443369468 is an apocalyptic number.

It is an amenable number.

166443369468 is an abundant number, since it is smaller than the sum of its proper divisors (221946885204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166443369468 is a wasteful number, since it uses less digits than its factorization.

166443369468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799741 (or 799739 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 60.

The spelling of 166443369468 in words is "one hundred sixty-six billion, four hundred forty-three million, three hundred sixty-nine thousand, four hundred sixty-eight".