166160420 has 12 divisors (see below), whose sum is σ = 348936924. Its totient is φ = 66464160.

The previous prime is 166160387. The next prime is 166160437. The reversal of 166160420 is 24061661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42328036 + 123832384 = 6506^2 + 11128^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166160420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4153991 + ... + 4154030.

It is an arithmetic number, because the mean of its divisors is an integer number (29078077).

Almost surely, 2^166160420 is an apocalyptic number.

166160420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166160420 is an abundant number, since it is smaller than the sum of its proper divisors (182776504).

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

166160420 is a wasteful number, since it uses less digits than its factorization.

166160420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308030 (or 8308028 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 166160420 is about 12890.3227267590. The cubic root of 166160420 is about 549.7634464829.

The spelling of 166160420 in words is "one hundred sixty-six million, one hundred sixty thousand, four hundred twenty".