16670056 has 32 divisors (see below), whose sum is σ = 34057800. Its totient is φ = 7603200.

The previous prime is 16670039. The next prime is 16670057. The reversal of 16670056 is 65007661.

It can be written as a sum of positive squares in 4 ways, for example, as 5447556 + 11222500 = 2334^2 + 3350^2 .

It is not an unprimeable number, because it can be changed into a prime (16670057) 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, 8356 + ... + 10156.

Almost surely, 2^16670056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16670056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17028900).

16670056 is an abundant number, since it is smaller than the sum of its proper divisors (17387744).

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

16670056 is a wasteful number, since it uses less digits than its factorization.

16670056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 16670056 is about 4082.8979903985. The cubic root of 16670056 is about 255.4537914783.

The spelling of 16670056 in words is "sixteen million, six hundred seventy thousand, fifty-six".