166043626 has 16 divisors (see below), whose sum is σ = 293829120. Its totient is φ = 68865840.

The previous prime is 166043623. The next prime is 166043627. The reversal of 166043626 is 626340661.

It is a junction number, because it is equal to n+sod(n) for n = 166043591 and 166043600.

It is not an unprimeable number, because it can be changed into a prime (166043623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190861 + ... + 191728.

It is an arithmetic number, because the mean of its divisors is an integer number (18364320).

Almost surely, 2^166043626 is an apocalyptic number.

166043626 is a deficient number, since it is larger than the sum of its proper divisors (127785494).

166043626 is a wasteful number, since it uses less digits than its factorization.

166043626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382629.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 166043626 is about 12885.7916326472. The cubic root of 166043626 is about 549.6346068912.

The spelling of 166043626 in words is "one hundred sixty-six million, forty-three thousand, six hundred twenty-six".