166425263334 has 64 divisors (see below), whose sum is σ = 424689696000. Its totient is φ = 47777584320.

The previous prime is 166425263317. The next prime is 166425263371. The reversal of 166425263334 is 433362524661.

166425263334 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 2 + 5 + 2 + 633 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 166425263334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7361799 + ... + 7384370.

It is an arithmetic number, because the mean of its divisors is an integer number (6635776500).

Almost surely, 2^166425263334 is an apocalyptic number.

166425263334 is an abundant number, since it is smaller than the sum of its proper divisors (258264432666).

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

166425263334 is a wasteful number, since it uses less digits than its factorization.

166425263334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14746210 (or 14746204 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

Adding to 166425263334 its reverse (433362524661), we get a palindrome (599787787995).

The spelling of 166425263334 in words is "one hundred sixty-six billion, four hundred twenty-five million, two hundred sixty-three thousand, three hundred thirty-four".