16660734 has 8 divisors (see below), whose sum is σ = 33321480. Its totient is φ = 5553576.

The previous prime is 16660729. The next prime is 16660751. The reversal of 16660734 is 43706661.

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

16660734 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 16660695 and 16660704.

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 3 ways as a sum of consecutive naturals, for example, 1388389 + ... + 1388400.

It is an arithmetic number, because the mean of its divisors is an integer number (4165185).

Almost surely, 2^16660734 is an apocalyptic number.

16660734 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.

16660734 is a wasteful number, since it uses less digits than its factorization.

16660734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776794.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 16660734 is about 4081.7562396596. The cubic root of 16660734 is about 255.4061654781.

The spelling of 16660734 in words is "sixteen million, six hundred sixty thousand, seven hundred thirty-four".