16403066 has 8 divisors (see below), whose sum is σ = 24798720. Its totient is φ = 8136828.

The previous prime is 16403053. The next prime is 16403077. The reversal of 16403066 is 66030461.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32036 + ... + 32543.

It is an arithmetic number, because the mean of its divisors is an integer number (3099840).

Almost surely, 2^16403066 is an apocalyptic number.

16403066 is a deficient number, since it is larger than the sum of its proper divisors (8395654).

16403066 is a wasteful number, since it uses less digits than its factorization.

16403066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64708.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 16403066 is about 4050.0698759404. The cubic root of 16403066 is about 254.0826502685.

The spelling of 16403066 in words is "sixteen million, four hundred three thousand, sixty-six".