1662543226 has 8 divisors (see below), whose sum is σ = 2531036160. Its totient is φ = 818864508.

The previous prime is 1662543161. The next prime is 1662543329. The reversal of 1662543226 is 6223452661.

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

It is a super-3 number, since 3×1662543226³ (a number of 29 digits) contains 333 as substring.

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, 6203386 + ... + 6203653.

It is an arithmetic number, because the mean of its divisors is an integer number (316379520).

Almost surely, 2^1662543226 is an apocalyptic number.

1662543226 is a deficient number, since it is larger than the sum of its proper divisors (868492934).

1662543226 is a wasteful number, since it uses less digits than its factorization.

1662543226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12407108.

The product of its digits is 103680, while the sum is 37.

The square root of 1662543226 is about 40774.2961435265. The cubic root of 1662543226 is about 1184.6525181264.

Adding to 1662543226 its reverse (6223452661), we get a palindrome (7885995887).

The spelling of 1662543226 in words is "one billion, six hundred sixty-two million, five hundred forty-three thousand, two hundred twenty-six".