16662041 has 4 divisors (see below), whose sum is σ = 18176784. Its totient is φ = 15147300.

The previous prime is 16662011. The next prime is 16662043. The reversal of 16662041 is 14026661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16662041 is a prime.

It is a super-2 number, since 2×16662041² = 555247220571362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16662041.

It is not an unprimeable number, because it can be changed into a prime (16662043) 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, 757355 + ... + 757376.

It is an arithmetic number, because the mean of its divisors is an integer number (4544196).

Almost surely, 2^16662041 is an apocalyptic number.

16662041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16662041 is a deficient number, since it is larger than the sum of its proper divisors (1514743).

16662041 is a wasteful number, since it uses less digits than its factorization.

16662041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514742.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16662041 is about 4081.9163391721. The cubic root of 16662041 is about 255.4128439980.

It can be divided in two parts, 166620 and 41, that added together give a palindrome (166661).

The spelling of 16662041 in words is "sixteen million, six hundred sixty-two thousand, forty-one".