166870734 has 8 divisors (see below), whose sum is σ = 333741480. Its totient is φ = 55623576.

The previous prime is 166870733. The next prime is 166870763. The reversal of 166870734 is 437078661.

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

166870734 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166870733) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13905889 + ... + 13905900.

It is an arithmetic number, because the mean of its divisors is an integer number (41717685).

Almost surely, 2^166870734 is an apocalyptic number.

166870734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166870734 is a wasteful number, since it uses less digits than its factorization.

166870734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27811794.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 166870734 is about 12917.8455634057. The cubic root of 166870734 is about 550.5457217051.

The spelling of 166870734 in words is "one hundred sixty-six million, eight hundred seventy thousand, seven hundred thirty-four".