166056136 has 32 divisors (see below), whose sum is σ = 344010240. Its totient is φ = 74745088.

The previous prime is 166056133. The next prime is 166056173. The reversal of 166056136 is 631650661.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (166056133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23416 + ... + 29671.

It is an arithmetic number, because the mean of its divisors is an integer number (10750320).

Almost surely, 2^166056136 is an apocalyptic number.

It is an amenable number.

166056136 is an abundant number, since it is smaller than the sum of its proper divisors (177954104).

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

166056136 is a wasteful number, since it uses less digits than its factorization.

166056136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53133 (or 53129 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 166056136 is about 12886.2770418768. The cubic root of 166056136 is about 549.6484100031.

The spelling of 166056136 in words is "one hundred sixty-six million, fifty-six thousand, one hundred thirty-six".