166429026 has 32 divisors (see below), whose sum is σ = 370944000. Its totient is φ = 55311120.

The previous prime is 166429013. The next prime is 166429033. The reversal of 166429026 is 620924661.

166429026 is a `hidden beast` number, since 1 + 6 + 642 + 9 + 0 + 2 + 6 = 666.

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 15 ways as a sum of consecutive naturals, for example, 14431 + ... + 23261.

It is an arithmetic number, because the mean of its divisors is an integer number (11592000).

Almost surely, 2^166429026 is an apocalyptic number.

166429026 is an abundant number, since it is smaller than the sum of its proper divisors (204514974).

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

166429026 is a wasteful number, since it uses less digits than its factorization.

166429026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191 (or 9185 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 166429026 is about 12900.7374207834. The cubic root of 166429026 is about 550.0595263396.

The spelling of 166429026 in words is "one hundred sixty-six million, four hundred twenty-nine thousand, twenty-six".