166056430 has 16 divisors (see below), whose sum is σ = 299421360. Its totient is φ = 66307072.

The previous prime is 166056421. The next prime is 166056463. The reversal of 166056430 is 34650661.

It is a junction number, because it is equal to n+sod(n) for n = 166056392 and 166056401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8275 + ... + 20014.

It is an arithmetic number, because the mean of its divisors is an integer number (18713835).

Almost surely, 2^166056430 is an apocalyptic number.

166056430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166056430 is a deficient number, since it is larger than the sum of its proper divisors (133364930).

166056430 is a wasteful number, since it uses less digits than its factorization.

166056430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28883.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 166056430 is about 12886.2884493558. The cubic root of 166056430 is about 549.6487343845.

The spelling of 166056430 in words is "one hundred sixty-six million, fifty-six thousand, four hundred thirty".