425166166 has 16 divisors (see below), whose sum is σ = 644964768. Its totient is φ = 210184000.

The previous prime is 425166127. The next prime is 425166167. The reversal of 425166166 is 661661524.

It is a super-2 number, since 2×425166166² = 361532537422279112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425166167) 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, 246186 + ... + 247906.

It is an arithmetic number, because the mean of its divisors is an integer number (40310298).

Almost surely, 2^425166166 is an apocalyptic number.

425166166 is a deficient number, since it is larger than the sum of its proper divisors (219798602).

425166166 is a wasteful number, since it uses less digits than its factorization.

425166166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

The product of its digits is 51840, while the sum is 37.

The square root of 425166166 is about 20619.5578517096. The cubic root of 425166166 is about 751.9452707925.

The spelling of 425166166 in words is "four hundred twenty-five million, one hundred sixty-six thousand, one hundred sixty-six".