16669345 has 32 divisors (see below), whose sum is σ = 25816320. Its totient is φ = 10026240.

The previous prime is 16669321. The next prime is 16669361. The reversal of 16669345 is 54396661.

It is not a de Polignac number, because 16669345 - 2⁵ = 16669313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16669298 and 16669307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10419 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (806760).

Almost surely, 2^16669345 is an apocalyptic number.

It is an amenable number.

16669345 is a deficient number, since it is larger than the sum of its proper divisors (9146975).

16669345 is a wasteful number, since it uses less digits than its factorization.

16669345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its digits is 116640, while the sum is 40.

The square root of 16669345 is about 4082.8109189626. The cubic root of 16669345 is about 255.4501596123.

It can be divided in two parts, 1666 and 9345, that added together give a palindrome (11011).

The spelling of 16669345 in words is "sixteen million, six hundred sixty-nine thousand, three hundred forty-five".