166906634 has 8 divisors (see below), whose sum is σ = 254603520. Its totient is φ = 82038796.

The previous prime is 166906631. The next prime is 166906637. The reversal of 166906634 is 436609661.

166906634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166906631) and next prime (166906637).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166906591 and 166906600.

It is not an unprimeable number, because it can be changed into a prime (166906631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707114 + ... + 707349.

It is an arithmetic number, because the mean of its divisors is an integer number (31825440).

Almost surely, 2^166906634 is an apocalyptic number.

166906634 is a deficient number, since it is larger than the sum of its proper divisors (87696886).

166906634 is a wasteful number, since it uses less digits than its factorization.

166906634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414524.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 166906634 is about 12919.2350392738. The cubic root of 166906634 is about 550.5851997165.

The spelling of 166906634 in words is "one hundred sixty-six million, nine hundred six thousand, six hundred thirty-four".