16646466 has 8 divisors (see below), whose sum is σ = 33292944. Its totient is φ = 5548820.

The previous prime is 16646453. The next prime is 16646467. The reversal of 16646466 is 66464661.

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

16646466 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16646467) 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, 1387200 + ... + 1387211.

It is an arithmetic number, because the mean of its divisors is an integer number (4161618).

Almost surely, 2^16646466 is an apocalyptic number.

16646466 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.

16646466 is a wasteful number, since it uses less digits than its factorization.

16646466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774416.

The product of its digits is 124416, while the sum is 39.

The square root of 16646466 is about 4080.0080882273. The cubic root of 16646466 is about 255.3332359996. Note that the first 3 decimals are identical.

The spelling of 16646466 in words is "sixteen million, six hundred forty-six thousand, four hundred sixty-six".