166061726 has 16 divisors (see below), whose sum is σ = 256813200. Its totient is φ = 80483520.

The previous prime is 166061717. The next prime is 166061737. The reversal of 166061726 is 627160661.

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, 6425 + ... + 19323.

It is an arithmetic number, because the mean of its divisors is an integer number (16050825).

Almost surely, 2^166061726 is an apocalyptic number.

166061726 is a deficient number, since it is larger than the sum of its proper divisors (90751474).

166061726 is a wasteful number, since it uses less digits than its factorization.

166061726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13099.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 166061726 is about 12886.4939374525. The cubic root of 166061726 is about 549.6545775964.

The spelling of 166061726 in words is "one hundred sixty-six million, sixty-one thousand, seven hundred twenty-six".